Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Red Elemental Blast

Choose one —
• Counter target blue spell.
• Destroy target blue permanent.

Plateau

Island

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Ivory Tower

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

Disenchant

Mountain

Jayemdae Tome

Stone Rain

Mox Sapphire

Manabarbs

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Tundra

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Plains

Ancestral Recall

Stasis

Players skip their untap steps.
At the beginning of your upkeep, sacrifice Stasis unless you pay {U}.

Counterspell

Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.