Trollhide

Enchant creature
Enchanted creature gets +2/+2 and has "{1}{G}: Regenerate this creature." (The next time the creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Hellkite Hatchling

Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.)
Hellkite Hatchling has flying and trample if it devoured a creature.

Wildsize

Target creature gets +2/+2 and gains trample until end of turn.
Draw a card.

Furnace Whelp

Flying
{R}: Furnace Whelp gets +1/+0 until end of turn.

Rip-Clan Crasher

Gruul Turf

Gruul Turf enters the battlefield tapped.
When Gruul Turf enters the battlefield, return a land you control to its owner's hand.
{T}: Add {R}{G}.

Infernal Plunge

As an additional cost to cast this spell, sacrifice a creature.
Add {R}{R}{R}.

Zhur-Taa Druid

{T}: Add {G}.
Whenever you tap Zhur-Taa Druid for mana, it deals 1 damage to each opponent.

Forest

Inner-Flame Acolyte

When Inner-Flame Acolyte enters the battlefield, target creature gets +2/+0 and gains haste until end of turn.
Evoke {R} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Stormblood Berserker

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.)
Menace (This creature can't be blocked except by two or more creatures.)

Elvish Warrior

Bogardan Firefiend

When Bogardan Firefiend dies, it deals 2 damage to target creature.

Thornweald Archer

Blood Ogre

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.)
First strike (This creature deals combat damage before creatures without first strike.)

Gruul Guildgate

Gruul Guildgate enters the battlefield tapped.
{T}: Add {R} or {G}.

Mulch

Reveal the top four cards of your library. Put all land cards revealed this way into your hand and the rest into your graveyard.

Titanic Growth

Target creature gets +4/+4 until end of turn.

Awakener Druid

When Awakener Druid enters the battlefield, target Forest becomes a 4/5 green Treefolk creature for as long as Awakener Druid remains on the battlefield. It's still a land.

Raid Bombardment

Whenever a creature you control with power 2 or less attacks, Raid Bombardment deals 1 damage to the player or planeswalker that creature is attacking.

Gift of the Gargantuan

Look at the top four cards of your library. You may reveal a creature card and/or a land card from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in any order.

Mountain

Imperiosaur

Spend only mana produced by basic lands to cast this spell.

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Seal of Fire

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

Toxic Iguanar

Toxic Iguanar has deathtouch as long as you control a green permanent. (Any amount of damage a creature with deathtouch deals to a creature is enough to destroy it.)