Air Elemental

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Amnesia

Target player reveals their hand and discards all nonland cards.

Jinx

Target land becomes the basic land type of your choice until end of turn.
Draw a card at the beginning of the next turn's upkeep.

Sol Ring

Flood

{U}{U}: Tap target creature without flying.

Jayemdae Tome

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Counterspell

High Tide

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Chain Lightning

Chain Lightning deals 3 damage to any target. Then that player or that permanent's controller may pay {R}{R}. If the player does, they may copy this spell and may choose a new target for that copy.

Wall of Water

Defender (This creature can't attack.)
{U}: Wall of Water gets +1/+0 until end of turn.

Castle Sengir

{T}: Add {C}.
{1}, {T}: Add {B}.
{2}, {T}: Add {U} or {R}.

Word of Undoing

Return target creature and all white Auras you own attached to it to their owners' hands.

Pyrotechnics

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

Unsummon

Return target creature to its owner's hand.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Swamp

Mountain

Blue Elemental Blast

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

Gaseous Form

Enchant creature
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Remove Soul

Control Magic

Enchant creature
You control enchanted creature.

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Island

Basalt Monolith

Basalt Monolith doesn't untap during your untap step.
{T}: Add {C}{C}{C}.
{3}: Untap Basalt Monolith.

Hydroblast

Choose one —
• Counter target spell if it's red.
• Destroy target permanent if it's red.

Infuse

Untap target artifact, creature, or land.
Draw a card at the beginning of the next turn's upkeep.

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Ghost Ship

Phantom Monster

Twiddle

You may tap or untap target artifact, creature, or land.

Pyroblast

Choose one —
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.

Enervate

Tap target artifact, creature, or land.
Draw a card at the beginning of the next turn's upkeep.

Flash Flood

Choose one —
• Destroy target red permanent.
• Return target Mountain to its owner's hand.

Azure Drake

Force Spike

Counter target spell unless its controller pays {1}.

Disintegrate

Disintegrate deals X damage to any target. If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead.

Red Elemental Blast

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

Mahamoti Djinn

Flying (This creature can't be blocked except by creatures with flying or reach.)

Spell Blast

Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)

Force Void

Counter target spell unless its controller pays {1}.
Draw a card at the beginning of the next turn's upkeep.

Flare

Flare deals 1 damage to any target.
Draw a card at the beginning of the next turn's upkeep.

Mana Drain

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

Wall of Air

Defender, flying (This creature can't attack, and it can block creatures with flying.)