Forest

Hull Breach

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Destroy target artifact and target enchantment.

Hunting Kavu

{1}{R}{G}, {T}: Exile Hunting Kavu and target creature without flying that's attacking you.

Vitalizing Wind

Creatures you control get +7/+7 until end of turn.

Darigaaz's Caldera

When Darigaaz's Caldera enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {B}, {R}, or {G}.

Blaze

Mountain

Strafe

Strafe deals 3 damage to target nonred creature.

Artifact Mutation

Destroy target artifact. It can't be regenerated. Create X 1/1 green Saproling creature tokens, where X is that artifact's mana value.

Fires of Yavimaya

Creatures you control have haste.
Sacrifice Fires of Yavimaya: Target creature gets +2/+2 until end of turn.

Rhox

You may have Rhox assign its combat damage as though it weren't blocked.
{2}{G}: Regenerate Rhox. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Shivan Wurm

Trample
When Shivan Wurm enters, return a red or green creature you control to its owner's hand.

Horned Kavu

When Horned Kavu enters, return a red or green creature you control to its owner's hand.

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Avatar of Fury

If an opponent controls seven or more lands, this spell costs {6} less to cast.
Flying
{R}: Avatar of Fury gets +1/+0 until end of turn.

Llanowar Elves

Shock

Rith's Grove

When Rith's Grove enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {R}, {G}, or {W}.

Yavimaya Barbarian

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Kavu Monarch

Kavu creatures have trample.
Whenever another Kavu enters, put a +1/+1 counter on Kavu Monarch.

Lightning Dart

Lightning Dart deals 1 damage to target creature. If that creature is white or blue, Lightning Dart deals 4 damage to it instead.

Overrun

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)

Birds of Paradise

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.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.