Pyroblast

Counter target spell if it is blue or destroy target permanent if it is blue.

Exclude

Counter target creature spell. Draw a card.

Flurry of Horns

Put two 2/3 red Minotaur creature tokens with haste onto the battlefield.

Lonely Sandbar

Lonely Sandbar comes into play tapped. {T}: Add {U} to your mana pool. Cycling {U} ({U}, Discard this card from your hand: Draw a card.)

Accumulated Knowledge

Draw a card, then draw cards equal to the number of cards named Accumulated Knowledge in all graveyards.

Firebolt

Firebolt deals 2 damage to target creature or player. Flashback {4}{R} (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Electrickery

Electrickery deals 1 damage to target creature you don't control. Overload {1}{R} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Flame Slash

Flame Slash deals 4 damage to target creature.

Deep Analysis

Target player draws two cards. Flashback - {1}{U}, Pay 3 life. (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Counterspell

Counters target spell as it is being cast.

Lightning Bolt

Lightning Bolt does 3 damage to one target.

Dispel

Izzet Boilerworks

Preordain

Pieces of the Puzzle

Swiftwater Cliffs

Swiftwater Cliffs enters the battlefield tapped. When Swiftwater Cliffs enters the battlefield, you gain 1 life. {T}: Add {U} or {R}.

Island

({T}: Add {U}.)

Mountain

({T}: Add {R}.)