If it was a new weapon,these are the stats I would like it to have:

Pros:
+20% damage per hit,up to 100%
On hit cause bleeding
+15% movement speed when equipped

Cons:
Bleeding damage is reduced in half
On miss:Take 10% more dmg up to 50%
On miss:resets the damage boost

I think:

+25% Damage
On hit: Cause Bleed
+20% Healing from Health Packs

-20% Healing from other sources
On miss: Your next hit swings 50% slower

Positives
+100% faster switch-to-speed
+marks cloaked spies (invisible + disguised) for 5 seconds
+bleeding on target for 3 seconds
+20% faster swing speed

Negatives
-50% slower switch-from-speed
-50% less Damage

hidden stats
+uses stock tauntkill

You can switch very fast to melee to attack classes like scouts and spies. You can mark Spies so your teammates can chase them.

Why So Long and Complicated Stat's Let's make it Simple and Balanced
(+) 20% More Damage
(#) Critical Hit from Behind
(~) 25% Less Swing Speed
(~) No Random Crit's

couldn't be added and would suck as heavy but because of the name what about:
+slicing a medigun healing beam would stop the healing for 4 seconds
+slicing a projectile in time would reduce it's incoming damage by 50%
+40% swing speed
-45% less fire rate

Soviet Slicer Stats
+20% damage
damage causes enemy to bleed
-25% firing speed
+20% damage taken while weapon is out
+25% speed while weapon is out

+On hit makes the enemy bleed
+10% melee range
-15% damage

Originally posted by Kyliswor:

+On hit makes the enemy bleed
+10% melee range
-15% damage

Only sensible one here. Only, -15 health instead of damage.

Originally posted by Creamsplosion:

Originally posted by Kyliswor:

+On hit makes the enemy bleed
+10% melee range
-15% damage

Only sensible one here. Only, -15 health instead of damage.

Longer melee range is broken and shouldnt be in the game.

+On hit: Causes the target to bleed for 5 seconds.
+Alt-click: Perform a puncture stab, inflicting a mini-crit if the target is bleeding. [animation is slightly slower]

-This weapon deploys 40% slower.

+50% health on kill
-30% weapon deploy speed

Originally posted by Mochi Sandvich:

I honestly don't know.

+25 damage bonus
On hit:bleed for 4 seconds

-30x firing speed
-No random critical hits
-Cannot be crit boosted

+Secondary fire: blocks 60/70% of the damage dealt by a melee attack (front only?)
+When blocked:the enemy bleeds for 4/5 seconds
-The secondary fire 15/20% slower
-25% damage dealt/-No random critical hits

whatchaguys think? :3

+35% meleerange
+Bleed on hit for 5 Seconds on Target
- Not able to critboost/ no random crits
-10% attackspeed

+30% Damage
+40% Movement Speed
+50 HP on kill

No Primary Slot
-15% Slower Firing Speed
-50 Max HP
NO Random Critical Hits