Llanowar Elves

Birds of Paradise

Mountain

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.

Forest

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Taiga

Kird Ape

Kird Ape gets +1/+2 as long as you control a Forest.