Balor, First to Break the Sky

{t}: Put a discovery counter on Balor, First to Break the Sky.
{t}: Remove a discovery counter from Balor, First to Break the Sky: Add {c}{c} to your mana pool.
Sacrifice Balor, First to Break the Sky: Remove a permanent with converted mana cost X from the game where X is the number of discovery counters on Balor, First to Break the Sky.