https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=7030

Concussive laser

(+) each hit improve damage by 10%, reset on reload
(+) +50% attack rate
(+) +33% clip size (8 bullet)
(-) -50% base damage
(-) -80% damage on buildings (aka, no damage)
(-) no random crits

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=513332553

(+/-) +25% accuracy
(+/-) each miss decrease accuracy by 20% (max 5 stack)
(+) loose stack on reloading or switching weapon
(-) -25% fire rate

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=68543526

Museum hired

(+) +100% more bullet
(+) on hit : decrease victim attack rate by 75% for 1 second
(-) one ammo by clip
(-) 30% less accuracy

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3482

Ninjassassin star

(+/-) replace gun with 3 shuriken (work like guilottine, but 200% more clip)
(+) last star is always crit
(+) crit if thorwn in the back of the victim
(-) -25% damage
(-) no bleed
(-) no crit on stun victim

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1871
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=598793285

Sentry Hat

(+) while deployed : get mini-sentry hat
(+) can block headshoot (take 80% actual health as damage)
(+) sentry attack in a 50% less range around you
(+) on melee hit : victim is marked for death and focused by sentry
(-) can't build sentry (cost is 999)
(-) while not deployed : sentry is off
(-) no random crits
(-) -100% non-crit damage against player
(-) sentry shoot cost 5 metal

Asked for Battle engi ?

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=17035

Turnspike

(+) on hit : Victim will block heal for 5 second
(+) crit on overhealed victim
(+) damage & effect apply to everyone link by medigun
(-) -25% damage

anti-medic
Ubercharge breaker
Vaccinator hater

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=215816746

Compact combustor

(+) missing health increase damage (10% missing hp => damage)
(+) +30% airblast rate
(-) -60% base damage
(-) -50% airblast size
(-) -50% flame size
(-) -75% afterburn duration

Quick kill, quite powerfull if you can keep constant fire
up to 33 damage on hoovy with 1 HP

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=10646

Divine Blade (for tanky demoman)

(+) on kill : get a head, up to 10 (will count but stop give effect when higher)
(+) each head improve your regen by 2 and your resistance to all damage by 5%
(+/-) sword type : +33% range, no random crit, longer holster
(-) can't be crit-boosted (charge don't provide mini-crit/crit)
(-) regen is lowered when attacked (like new regen mode)

Be tanky, get regen, get powa

How to be even odd
Knife for Spy

On backstab : The victim will switch team with you
on backstab : you suicide (and switch team)
Work like normal knife on hit

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=275032110

Bow type (turned into crossbow) primary for sniper
Suddent bolt

(+) can keep charged arrow infinitly
(+) 80% less slow when charged
(-) mini-crit on headshoot
(-) -20% damage on bodyshoot

Or

Sniper type

(+) 80% less slow when charging
(+) can headshoot while not scoped
(+/-) charge and scope are independant
(-) headshoot are mini-crit
(-) -25% charging rate
(-) headshoot only while fully charged

Keep mobility, reduce your damage