Igneus Rex

Haste, Trample, Indestructible
Sacrifice a Mountain: Igneus Rex deals 3 damage
to target permanent, then put a lava counter on
Igneus Rex. Activate this ability only as a sorcery.
If Igneus Rex would leave the battlefield, you
may remove a lava counter instead. If you do, tap
Igneus Rex and put a stun counter on it.