Zergy by Hinkergon

Thanks for the comments, and I've added Stats and Talents now. Enjoy! :)

Just a little tipper, Eden : The zergling requires HERO takedowns to get an attack speed and movement speed boost (And I am assuming he won't be doing a ton of damage on his own), while the butcher gets attack damage from 25%, unupgraded, to 35%, upgraded, just by farming minions. I actually feel lowering the trait's buff would make the zergling a hero that wouldn't even be close to being as viable as even low tier heroes, as he will need heavy buffs to escape (I am all assuming here he will be a relatively weak hero -- High attack speed, maybe passively go 5% faster than other heroes, 30% with his trait filled, but low health pool and low-ish attack damage)

Nice concept!

I have only one problem: he's passive is both really hard to get and have too big of a bost.
Usually when it's both hard to get and a big bost is a good thing but in this case it's either a game when you're team is extremely good and than you become over powered and not die or your team is terrible and than you die before getting much stacks.
To fix it I think you can:
1) Make that you get points from both minion (1) and heroes (about 10 points for each kill) and after you get enough points they become a stack (it can be something like 15 points = 1 stack).
2) Make each stack be less of a buff, and a lower maximum (like stack=3% and max=15%) and you could upgrade the maximum in the talents.

Remember that's my idea and opinion,this is your concept, do what ever you want and you don't have to listen to me.
Aside from that I think that's a really cool concept and I'd like to see talents and stats :D

Kerrigan already spawns zerglings