Fire From The Sky

Suspend 4 - {x}{1}{r} (Rather than cast this card from your hand, you may pay {x}{1}{r} and exile it with 4 time counters and X+Y charge counters on it (where Y is the amount of red mana spent to pay X). At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost.)
Fire From The Sky deals X+Y damage to each creature, where Y is the amount of red mana spent to pay X. (If Fire From The Sky was cast by suspending it, it instead deals X damage, where X is the amount of charge counters on it.)