Buy @ TCGplayer
Trample
Whenever this creature attacks, another target creature you control gains trample and gets +X/+X until end of turn, where X is this creature's power.
If Ashroot Animist leaves the battlefield before its last ability resolves, use its power as it last existed on the battlefield to determine the value of X.
The value of X is determined only once, as Ashroot Animist's last ability resolves. The value of the bonus won't change later in the turn if Ashroot Animist's power changes.
