Rodeo Pyromancers

Whenever you cast your first spell each turn, add {R}{R}.

Ankle Biter

Shock

Nest Robber

Molten Ravager

{R}: This creature gets +1/+0 until end of turn.

Burn Bright

Creatures you control get +2/+0 until end of turn.

Prized Unicorn

All creatures able to block this creature do so.

Mardu Outrider

As an additional cost to cast this spell, discard a card.

Scorching Shot

Scorching Shot deals 5 damage to target creature.

Brazen Blademaster

Whenever this creature attacks while you control two or more artifacts, it gets +2/+1 until end of turn.

Scream Puff

Deathtouch
Whenever this creature deals combat damage to a player, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")

Swamp

Fanatical Strength

Target creature gets +3/+3 and gains trample until end of turn.

Rootrider Faun

{T}: Add {G}.
{1}, {T}: Add one mana of any color.

Savage Gorger

Flying
At the beginning of your end step, if an opponent lost life this turn, put a +1/+1 counter on this creature. (Damage causes loss of life.)

Eternal Thirst

Enchant creature
Enchanted creature has lifelink and "Whenever a creature an opponent controls dies, put a +1/+1 counter on this creature." (Damage dealt by a creature with lifelink also causes its controller to gain that much life.)

Woodland Mystic

Skeleton Archer

When this creature enters, it deals 1 damage to any target.

Bristlebud Farmer

Trample
When this creature enters, create two Food tokens. (They're artifacts with "{2}, {T}, Sacrifice this token: You gain 3 life.")
Whenever this creature attacks, you may sacrifice a Food. If you do, mill three cards. You may put a permanent card from among them into your hand.

Drover Grizzly

Whenever this creature attacks while saddled, creatures you control gain trample until end of turn.
Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Forest

Mountain

Screaming Phantom

Flying
Whenever this creature attacks, mill a card. (Put the top card of your library into your graveyard.)

Gigantosaurus

Colossal Rattlewurm

Colossal Rattlewurm has flash as long as you control a Desert.
Trample
{1}{G}, Exile this card from your graveyard: Search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Nightmare

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Murder

Deep-Cavern Bat

Flying, lifelink
When this creature enters, look at target opponent's hand. You may exile a nonland card from it until this creature leaves the battlefield.

Wildwood Patrol

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)