Swamp

Goblin Deathraiders

Mountain

Feed the Swarm

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Introduction to Prophecy

Putrid Goblin

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Goblin Outlander

Skirk Prospector

Reckless Impulse

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Mogg Fanatic

Sacrifice Mogg Fanatic: It deals 1 damage to any target.

Environmental Sciences

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 2 life.

Flamewave Invoker

{7}{R}: Flamewave Invoker deals 5 damage to target player or planeswalker.

Abrade

Choose one —
• Abrade deals 3 damage to target creature.
• Destroy target artifact.

Spike Jester

Impact Tremors

Whenever a creature you control enters, this enchantment deals 1 damage to each opponent.

First Day of Class

Whenever a creature you control enters this turn, put a +1/+1 counter on it and it gains haste until end of turn.
Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)