The Firemind Conclave

The Firemind Conclave enters the battlefield tapped.
{t}: Add {u} or {r} to your mana pool.
{t}, Sacrifice The Firemind Conclave: Add {u}{r} to your mana pool.
Discard an Island or Mountain card from your hand: Return The Firemind Conclave to the battlefield from the graveyard.