Savage Lands

This land enters tapped.
{T}: Add {B}, {R}, or {G}.

Gyrus, Waker of Corpses

Gyrus enters with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.
Whenever Gyrus attacks, you may exile target creature card with lesser power from your graveyard. If you do, create a token that's a copy of that card and that's tapped and attacking. Exile the token at end of combat.

Anger

Haste
As long as this card is in your graveyard and you control a Mountain, creatures you control have haste.