Granite Gargoyle

Flying
{R}: Granite Gargoyle gets +0/+1 until end of turn.

Fire Elemental

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.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Shivan Dragon

Flying (This creature can't be blocked except by creatures with flying or reach.)
{R}: Shivan Dragon gets +1/+0 until end of turn.

Mountain

Hill Giant

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.