Asir, Bane of Arz

First Strike
If a creature you control would have X or more
-1-1 counters on it, where X is that creature's toughness, remove those -1-1 counters instead.
As long as you control ten or more warriors and knights, each other warrior and knight you
control gets +X+0 and first strike, where X is the number of warriors and knights you control.