Ranathag, One with the Flame

Haste
Whenever you cast an instant or sorcery spell, Choose one—
. Add {r}{r}
. Ranathag, One with the Flame deals 3 damage to any target
Sacrifice a mountain: Ranathag, One with the Flame gets +1/+0 and gains double strike until end of turn.
"Flame is sentient. You just need to how to talk to it."