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.

Rite of Flame

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

Kird Ape

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

Giant Growth

Target creature gets +3/+3 until end of turn.

Mountain

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Seal of Fire

Sacrifice Seal of Fire: It deals 2 damage to any target.

Burning-Tree Emissary

When Burning-Tree Emissary enters, add {R}{G}.

Forest

Weather the Storm

You gain 3 life.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Vines of Vastwood

Kicker {G} (You may pay an additional {G} as you cast this spell.)
Target creature can't be the target of spells or abilities your opponents control this turn. If this spell was kicked, that creature gets +4/+4 until end of turn.

Spark Elemental

Trample, haste (This creature can deal excess combat damage to the player or planeswalker it's attacking. This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, sacrifice Spark Elemental.