Sozin's Comet (TLA-154) - Avatar: The Last Airbender

Each creature you control gains firebending 5 until end of turn. (Whenever it attacks, add RRRRR. This mana lasts until end of combat.)

Foretell 2R (During your turn, you may pay 2 and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)