--UNLOCK--
So the obtainment is simple, get 10 different hivemind streaks up to 7 people infected (counting the reset kills)
this will give you a badge as well called "Mass of Chaos" and the mastery will be unlocked.
--Mastery--
For every infection there will be a +10 health increase.
Also the hivemind will look a lot more spiky.
--0 INFECTIONS--
THROWER.
E: stab into a person and have them be forced to spam a something to wiggle off. This does 45 DMG on hit and -1 health for every second they are on. This can infect someone. Cooldown is 35 seconds
Q: Once picked up you can chuck a person 15 studs in any direction. Based of velocity, the faster a guy is going, the more damage. Now for every 5 studs per second someone is going, +4 DMG, due to velocity though. Say you chucked a guy off of an engineer skybase up by lobby, that would almost kill someone at full. This cannot infect someone. Cooldown is 40 seconds.
CUTTER.
--5 INFECTIONS--
Access to the R ability
R-E: A basic slash attack that does around 29 DMG. This can infect someone. Cooldown is 35 seconds.
R-Q: A defensive ability which puts up one if its tentacles and can block/ parry projectiles. small projectiles like a superball get parried meanwhile a hollow purple does half its original. damage. This can't Infect people. Cooldown is 30 seconds.
--9 INFECTIONS--
Final part.
X: This exists for both Cutter and Thrower. It places a flesh mass that can explode with those flesh cubes that happen when a normal hivemind dies. When X is pressed again. This mass can be destroyed via punching it a couple times or using other methods. This mass has 80 HP. The explosion does 40 DMG while each flesh cube on contact does 5 DMG. This can infect. Cooldown is 50 seconds, after placing the bomb you must wait 5 seconds before exploding it.
Give feedback if you can as this is my second suggestion