Booster Contents & Pull Rates
Here you'll find the pull rates and card order for all the packs. Currently, Reverse Holos do not look different from the regular versions.

Base Set (1999)
5 Commons, 2 Energy, 1 Rare (1/3 Holo), 3 Uncommons
Machamp 2-Player Starter Set Exclusive (not in packs)
Jungle (1999)
7 Commons, 1 Rare (1/3 Holo), 3 Uncommons
Fossil (1999)
7 Commons, 1 Rare (1/3 Holo), 3 Uncommons
Base Set 2 (2000)
3 Uncommons, 5 Commons, 1 Rare (1/3 Holo), 2 Energy
Team Rocket (2000)
7 Commons, 1 Rare (1/3 Holo, 1/60 Secret), 3 Uncommons
Gym Heroes (2000)
6 Commons, 1 Rare (1/3 Holo), 3 Uncommons, 1 Energy
Gym Challenge (2000)
6 Commons, 1 Rare (1/3 Holo), 3 Uncommons, 1 Energy
Neo Genesis (2000)
1 Energy, 1 Rare (1/3 Holo), 3 Uncommons, 6 Commons
Neo Discovery (2001)
3 Uncommons, 1 Rare (1/3 Holo), 7 Commons
Neo Revelation (2001)
7 Commons, 1 Rare (1/3 Holo, 1/18 Shining), 3 Uncommons
Neo Destiny (2002)
7 Commons, 1 Rare (1/3 Holo, 1/12 Shining), 3 Uncommons
Legendary Collection (2002)
6 Commons, 3 Uncommons, 1 Rare (1/3 Holo), 1 Reverse Holo (any rarity)
Notes: This set was specifically built for balanced sealed play. Commons and uncommons are always a single type or normal type with a strong bias towards basics and their evolutions. I've done my best trying to replicate the formula by analyzing pack openings.
Expedition Base Set (2002)
5 Commons, 0-1 Premium (replaces a common; 1/3 Rare Holo), 1 Reverse Holo (any rarity), 1 Rare, 2 Uncommons
Aquapolis (2003)
5 Commons, 0-1 Premium (replaces a common; 1/3 Rare Holo, 1/18 Crystal), 1 Reverse Holo (any rarity but Crystal), 1 Rare, 2 Uncommons
Skyridge (2003)
5 Commons, 0-1 Premium (replaces a common; 1/3 Rare Holo, 1/18 Crystal), 1 Reverse Holo (any rarity but Crystal), 1 Rare, 2 Uncommons
EX Ruby & Sapphire (2003)
5 Commons, 0-1 Premium (replaces a common; 1/2 Common Energy, 1/4 Rare Holo), 2 Uncommons, 1 Reverse Holo (any rarity but EX), 1 Rare (1/8 EX)
EX Sandstorm (2003)
5 Commons, 0-1 Premium (replaces a common; 1/4 Rare Holo), 2 Uncommons, 1 Reverse Holo (any rarity but EX), 1 Rare (1/8 EX)
EX Dragon (2003)
5 Commons, 2 Uncommons, 0-1 Premium (replaces a common; 1/4 Rare Holo, 1/8 EX, 1/36 Secret), 1 Reverse Holo (any rarity but EX and Secret), 1 Rare
EX Team Magma vs Team Aqua (2004)
5 Commons, 1 Reverse Holo (any rarity but EX and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Secret), 2 Uncommons
Absol Box Topper (not in packs)
EX Hidden Legends (2004)
5 Commons, 1 Reverse Holo (any rarity but EX), 1 Rare (1/4 Holo, 1/18 EX), 2 Uncommons
Groudon Box Topper (not in packs)
EX FireRed & LeafGreen (2004)
5 Commons, 1 Reverse Holo (any rarity but EX and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Secret), 2 Uncommons
Charmander Box Topper (not in packs)
EX Team Rocket Returns (2004)
5 Commons, 1 Reverse Holo (any rarity but EX, Secret and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Secret, 1/72 Gold Star), 2 Uncommons
Charmeleon Box Topper (not in packs)
EX Deoxys (2005)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
Rocket's Raikou ex Box Topper (not in packs)
EX Emerald (2005)
5 Commons, 1 Reverse Holo (any rarity but EX), 1 Rare (1/4 Holo, 1/18 EX), 2 Uncommons
Farfetch'd Box Topper (not in packs)
EX Unseen Forces (2005)
5 Commons, 1 Reverse Holo (any rarity but EX, Secret and Gold Star), 0-1 Unown (replaces Reverse Holo; 1/5 chance), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Secret, 1/72 Gold Star), 2 Uncommons
Rocket's Persian ex Box Topper (not in packs)
EX Delta Species (2005)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
Azumarill Box Topper (not in packs)
EX Legend Maker (2006)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
Pikachu δ Box Topper (not in packs)
EX Holon Phantoms (2006)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
Mew Box Topper (not in packs)
EX Crystal Guardians (2006)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
EX Dragon Frontiers (2006)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
EX Power Keepers (2007)
5 Commons, 1 Reverse Holo (any rarity but EX and Gold Star), 1 Rare (1/4 Holo, 1/18 EX, 1/72 Gold Star), 2 Uncommons
Diamond & Pearl (2007)
5 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but LV.X and Common Energy), 1 Rare (1/4 Holo, 1/36 LV.X), 3 Uncommons
Diamond & Pearl - Mysterious Treasures (2007)
5 Commons, 1 Reverse Holo (any rarity but LV.X and Secret), 1 Rare (1/4 Holo, 1/36 LV.X, 1/72 Secret), 3 Uncommons
Diamond & Pearl - Secret Wonders (2007)
5 Commons, 1 Reverse Holo (any rarity but LV.X), 1 Rare (1/4 Holo, 1/36 LV.X), 3 Uncommons
Diamond & Pearl - Great Encounters (2008)
5 Commons, 1 Reverse Holo (any rarity but LV.X), 1 Rare (1/4 Holo, 1/36 LV.X), 3 Uncommons
Diamond & Pearl - Majestic Dawn (2008)
5 Commons, 1 Reverse Holo (any rarity but LV.X), 1 Rare (1/4 Holo, 1/36 LV.X), 3 Uncommons
Diamond & Pearl - Legends Awakened (2008)
5 Commons, 1 Reverse Holo (any rarity but LV.X), 1 Rare (1/4 Holo, 1/36 LV.X), 3 Uncommons
Diamond & Pearl - Stormfront (2008)
5 Commons, 1 Reverse Holo (any rarity but LV.X, Secret and Shiny), 1 Rare (1/4 Holo, 1/36 LV.X, 1/36 Secret, 1/36 Shiny), 3 Uncommons
Platinum (2009)
5 Commons, 1 Reverse Holo (any rarity but LV.X, Secret and Shiny), 1 Rare (1/4 Holo, 1/36 LV.X, 1/36 Secret, 1/36 Shiny), 3 Uncommons
Platinum - Rising Rivals (2009)
5 Commons, 1 Reverse Holo (any rarity but LV.X, Secret), 1 Rare (1/4 Holo, 1/18 Secret Rotom, 1/36 LV.X, 1/36 Secret), 3 Uncommons
Platinum - Supreme Victors (2009)
5 Commons, 1 Reverse Holo (any rarity but LV.X, Secret and Shiny), 1 Rare (1/4 Holo, 1/36 LV.X, 1/36 Secret, 1/36 Shiny), 3 Uncommons
Platinum - Arceus (2009)
5 Commons, 1 Reverse Holo (any rarity but LV.X, Secret and Shiny), 1 Rare (1/4 Holo, 1/4 Secret Arceus, 1/36 LV.X, 1/36 Shiny), 3 Uncommons
HeartGold & SoulSilver (2010)
5 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but Legend, Secret and Common Energy), 0-1 Prime (replaces Reverse Holo; 1/7 chance), 1 Rare (1/4 Holo, 1/12 Legend, 1/36 Shiny, 1/108 Secret), 3 Uncommons
HS-Unleashed (2010)
5 Commons, 1 Reverse Holo (any rarity but Legend and Secret), 0-1 Prime (replaces Reverse Holo; 1/7 chance), 1 Rare (1/4 Holo, 1/12 Legend, 1/108 Secret), 3 Uncommons
HS-Undaunted (2010)
5 Commons, 1 Reverse Holo (any rarity but Legend and Secret), 0-1 Prime (replaces Reverse Holo; 1/7 chance), 1 Rare (1/4 Holo, 1/12 Legend, 1/108 Secret), 3 Uncommons
HS-Triumphant (2010)
5 Commons, 1 Reverse Holo (any rarity but Legend and Secret), 0-1 Prime (replaces Reverse Holo; 1/7 chance), 1 Rare (1/4 Holo, 1/12 Legend, 1/108 Secret), 3 Uncommons
Call of Legends (2011)
5 Commons, 1 Reverse Holo (any rarity; includes Common Energy), 0-1 Shiny (replaces Reverse Holo; 1/18 chance), 1 Rare (1/4 Holo), 3 Uncommons
Black & White (2011)
5 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but Full Art, Secret and Common Energy), 1 Rare (1/4 Holo, 1/18 Full Art, 1/80 Secret), 3 Uncommons
Black & White - Emerging Powers (2011)
5 Commons, 1 Reverse Holo (any rarity but Full Art), 1 Rare (1/4 Holo, 1/18 Full Art), 3 Uncommons
Black & White - Noble Victories (2011)
5 Commons, 1 Reverse Holo (any rarity but Full Art and Secret), 1 Rare (1/4 Holo, 1/18 Full Art, 1/80 Secret), 3 Uncommons
Black & White - Next Destinies (2012)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Dark Explorers (2012)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Dragons Exalted (2012)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Dragon Vault (2012)
5 Holos, 0-1 Secret Holo (replaces a Holo; 1/4 chance)
Black & White - Boundaries Crossed (2012)
5 Commons, 1 Reverse Holo (any rarity but EX, Ace, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/18 Ace, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Plasma Storm (2013)
5 Commons, 1 Reverse Holo (any rarity but EX, Ace, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/18 Ace, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Plasma Freeze (2013)
5 Commons, 1 Reverse Holo (any rarity but EX, Ace, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/18 Ace, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Plasma Blast (2013)
5 Commons, 1 Reverse Holo (any rarity but EX, Ace, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/18 EX, 1/18 Ace, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Black & White - Legendary Treasures (2013)
4 Commons, 1 Reverse Holo (any rarity but EX, Secret and Radiant Collection), 1 Rare (1/4 Holo, 1/9 EX, 1/80 Secret), 1 Radiant Collection Uncommon+ (1/9 EX, 1/36 Full Art EX), 1 Radiant Collection Common, 2 Uncommons
XY (2014)
5 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but EX, Full Art EX and Common Energy), 1 Rare (1/4 Holo, 1/9 EX, 1/36 Full Art EX), 3 Uncommons
XY - Flashfire (2014)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Furious Fists (2014)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Phantom Forces (2014)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Primal Clash (2015)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Double Crisis (2015)
3 Commons, 1 Reverse Holo (any rarity but EX), 1 Rare Holo (1/9 EX), 2 Uncommons
XY - Roaring Skies (2015)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Ancient Origins (2015)
5 Commons, 1 Reverse Holo (any rarity but EX, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - BREAKthrough (2015)
5 Commons, 1 Reverse Holo (any rarity but EX, BREAK, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/12 BREAK, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - BREAKpoint (2016)
5 Commons, 1 Reverse Holo (any rarity but EX, BREAK, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/12 BREAK, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Generations (2016)
4 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but EX and Radiant Collection), 1 Radiant Collection Uncommon+ (1/9 EX, 1/18 Full Art, 1/36 Full Art EX), 1 Rare (1/4 Holo, 1/9 EX), 1 Radiant Collection Common, 2 Uncommons
XY - Fates Collide (2016)
5 Commons, 1 Reverse Holo (any rarity but EX, BREAK, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/12 BREAK, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Steam Siege (2016)
5 Commons, 1 Reverse Holo (any rarity but EX, BREAK, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/12 BREAK, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
XY - Evolutions (2016)
5 Commons (~1/6 for 1 Common Energy), 1 Reverse Holo (any rarity but EX, BREAK, Full Art, Full Art EX, and Secret), 1 Rare (1/4 Holo, 1/9 EX, 1/12 BREAK, 1/18 Full Art, 1/36 Full Art EX, 1/80 Secret), 3 Uncommons
Sun & Moon (2017)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Guardians Rising (2017)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Burning Shadows (2017)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Shining Legends (2017)
5 Commons, 1 Reverse Holo (Common, Uncommon and Rare Holo), 1 Rare Holo (1/9 GX, 1/18 Shining*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Crimson Invasion (2017)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Ultra Prism (2018)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Forbidden Light (2018)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Celestial Storm (2018)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Dragon Majesty (2018)
5 Commons, 1 Reverse Holo (Common, Uncommon and Rare Holo), 1 Rare Holo (1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Lost Thunder (2018)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Team Up (2019)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Prism Star*, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Detective Pikachu (2019)
3 Common Holos, 1 Rare Holo (1/4 Rare Ultra Holo*)
Sun & Moon - Unbroken Bonds (2019)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Unified Minds (2019)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sun & Moon - Hidden Fates (2019)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/12 Shiny Vault Rare*, 1/18 Full Art; includes Shiny Vault*, 1/36 Full Art GX; includes Shiny Vault*, 1/80 Secret; includes Shiny Vault*), 1 Basic Energy, 3 Uncommons
Sun & Moon - Cosmic Eclipse (2019)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/9 GX, 1/18 Full Art, 1/36 Full Art GX, 1/80 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield - Rebel Clash (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield - Darkness Ablaze (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare (1/4 Holo, 1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield - Champion's Path (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo), 1 Rare Holo (1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield - Vivid Voltage (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo) or 1/18 chance for Amazing Rare*, 1 Rare Holo (1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons
Sword & Shield - Shining Fates (2020)
5 Commons, 1 Reverse Holo (Common, Uncommon, Rare and Rare Holo) or 1/4 for Shining* and 1/18 chance for Amazing Rare*, 1 Rare Holo (1/8 V/VMAX, 1/16 Full Art, 1/72 Secret), 1 Basic Energy, 3 Uncommons

* Unconfirmed; estimated pull rate.

Drop rate sources: 1[www.flipsidegaming.com], 2[pokegym.net], 3[pokemonboosterpack.neocities.org]
Card order from various youtube pack openings.