City of Traitors

If you play any land, sacrifice City of Traitors. {T}: Add two colorless mana to your mana pool.

Magus of the Moon

Nonbasic lands are Mountains.

Goblin Rabblemaster

Other Goblin creatures you control attack each turn if able. At the beginning of combat on your turn, put a 1/1 red Goblin creature token with haste onto the battlefield. Whenever Goblin Rabblemaster attacks, it gets +1/+0 until end of turn for each other attacking Goblin.

Chalice of the Void

Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with converted mana cost equal to the number of charge counters on Chalice of the Void, counter that spell.

Simian Spirit Guide

Remove Simian Spirit Guide in your hand from the game: Add {R} to your mana pool.

Sulfur Elemental

Flash (You may play this spell any time you could play an instant.) Split second (As long as this spell is on the stack, players can't play spells or activated abilities that aren't mana abilities.) White creatures get +1/-1.

Slice and Dice

Slice and Dice deals 4 damage to each creature. Cycling {2}{R} ({2}{R},Discard this card from your hand: Draw a card.) When you cycle Slice and Dice, you may have it deal 1 damage to each creature.

Volcanic Fallout

Chrome Mox

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand. {T}: Add one mana of any of the exiled card's colors to your mana pool.

Jokulhaups

Destroy all artifacts, creatures, and lands. They can't be regenerated.

Ensnaring Bridge

Each creature with power greater than the number of cards in your hand cannot attack.

Blood Moon

All non-basic lands are now basic mountains.

Koth of the Hammer

+1: Untap target Mountain. It becomes a 4/4 red Elemental creature until end of turn. It's still a land. -2: Add {R} to your mana pool for each Mountain you control. -5: You get an emblem with "Mountains you control have '{T}: This land deals 1 damage to target creature or player.'"

Fiery Confluence

Ancient Tomb

Chandra, Torch of Defiance

Quicksmith Rebel

Hazoret the Fervent

Leyline of the Void

If Leyline of the Void is in your opening hand, you may begin the game with it on the battlefield. If a card would be put into an opponent's graveyard from anywhere, exile it instead.