Creature — Elephant
Trample Whenever Thorn Mammoth or another creature enters the battlefield under your control, Thorn Mammoth fights up to one target creature you don't control.
Metagame: appears in 1 deck (1.9 %)
If the target creature is an illegal target when Thorn Mammoth’s last ability tries to resolve, the ability doesn’t resolve. If Thorn Mammoth is no longer on the battlefield, the target creature won’t deal or be dealt damage.