Iron Myr

Turn the Tide

Creatures your opponents control get -2/-0 until end of turn.

Red Sun's Zenith

Red Sun's Zenith deals X damage to any target. If a creature dealt damage this way would die this turn, exile it instead. Shuffle Red Sun's Zenith into its owner's library.

Blisterstick Shaman

When Blisterstick Shaman enters, it deals 1 damage to any target.

Burn the Impure

Burn the Impure deals 3 damage to target creature. If that creature has infect, Burn the Impure deals 3 damage to that creature's controller.

Peace Strider

When Peace Strider enters, you gain 3 life.

Ogre Resister

Neurok Commando

Shroud (This creature can't be the target of spells or abilities.)
Whenever Neurok Commando deals combat damage to a player, you may draw a card.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Mountain

Koth's Courier

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Sleep

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

Quicksilver Geyser

Return up to two target nonland permanents to their owners' hands.

Preordain

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Crush

Arc Trail

Arc Trail deals 2 damage to any target and 1 damage to another target.

Island

Lava Axe

Lava Axe deals 5 damage to target player or planeswalker.

Rally the Forces

Attacking creatures get +1/+0 and gain first strike until end of turn.

Melt Terrain

Destroy target land. Melt Terrain deals 2 damage to that land's controller.

Silver Myr

Call to Mind

Return target instant or sorcery card from your graveyard to your hand.

Galvanoth

At the beginning of your upkeep, you may look at the top card of your library. You may cast it without paying its mana cost if it's an instant or sorcery spell.

Fire Servant

If a red instant or sorcery spell you control would deal damage, it deals double that damage instead.