Mountain

Avenging Hunter

Trample
When Avenging Hunter enters, you take the initiative.

Simian Spirit Guide

Exile Simian Spirit Guide from your hand: Add {R}.

Seething Song

Burning-Tree Emissary

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

Breath Weapon

Breath Weapon deals 2 damage to each non-Dragon creature.

Lotus Petal

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

Goliath Paladin

Vigilance
When Goliath Paladin enters, you take the initiative.

Sandstone Needle

Sandstone Needle enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from Sandstone Needle: Add {R}{R}. If there are no depletion counters on Sandstone Needle, sacrifice it.

Plains

Writhing Chrysalis

Devoid (This card has no color.)
When you cast this spell, create two 0/1 colorless Eldrazi Spawn creature tokens with "Sacrifice this creature: Add {C}."
Reach
Whenever you sacrifice another Eldrazi, put a +1/+1 counter on Writhing Chrysalis.

Crimson Fleet Commodore

Trample
When Crimson Fleet Commodore enters, you become the monarch.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Rite of Flame

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

Hickory Woodlot

Hickory Woodlot enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from Hickory Woodlot: Add {G}{G}. If there are no depletion counters on Hickory Woodlot, sacrifice it.