Twiddle

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

Brainstorm

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

Force Void

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

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Force Spike

Counter target spell unless its controller pays {1}.

Giant Tortoise

Giant Tortoise gets +0/+3 as long as it's untapped.

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.

Counterspell

Mahamoti Djinn

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

Telekinesis

Tap target creature. Prevent all combat damage that would be dealt by that creature this turn. It doesn't untap during its controller's next two untap steps.

Force of Will

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.

Control Magic

Enchant creature
You control enchanted creature.

Pyrotechnics

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

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.

Word of Undoing

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

Jayemdae Tome

Amnesia

Target player reveals their hand and discards all nonland cards.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Air Elemental

Flash Flood

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

Enervate

Tap 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.

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.

Island

High Tide

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

Blue Elemental Blast

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

Spell Blast

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

Mountain

Azure Drake

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.

Gaseous Form

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

Lat-Nam's Legacy

Shuffle a card from your hand into your library. If you do, draw two cards at the beginning of the next turn's upkeep.

Merchant Scroll

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

Basalt Monolith

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

Unsummon

Return target creature to its owner's hand.

Sol Ring

Phantom Monster

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.

Hydroblast

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