Kashik's Domain

Kashik's Domain enters the battlefield tapped
unless you control a red or black elemental
creature.
{t}: Add {r} or {b}{b}
{t}{b}{b}{r}: Search your library and/or graveyard
for a card named Kashik, Volcano's Bane, reveal
it, and put it into your hand. If you search your
library this way, shuffle it.