Zero, Maverick Hunter

Trample, Hexproof, Lifelink, Reach
Whenever Zero, Maverick Hunter deals damage to a creature, if that creature was dealt excess damage this turn, that creature's controller sacrifices a noncreature, nonland permanent.
Every time this card defeats another card it gets permanent Haste, Double Strike, + {2}/{2}
{r}: All cards you control gain +{3} and First Strike.