Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Forest

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.