Counter target instant spell if it's blue.
Draw a card at the beginning of the next turn's upkeep.

Kicker
Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

Cackling Flames deals 3 damage to any target.
Hellbent — Cackling Flames deals 5 damage instead if you have no cards in hand.

Reveal cards from the top of your library until you reveal a nonland card. Put the revealed cards on the bottom of your library in a random order. When you reveal a nonland card this way, Calibrated Blast deals damage equal to that card's mana value to any target.
Flashback

Players can't gain life this turn. Damage can't be prevented this turn. Call In a Professional deals 3 damage to any target.

Carbonize deals 3 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.

Choose one —
• Cast into the Fire deals 1 damage to each of up to two target creatures.
• Exile target artifact.

Choose one —
• Cathartic Pyre deals 3 damage to target creature or planeswalker.
• Discard up to two cards, then draw that many cards.

Spree (Choose one or more additional costs.)
+ — Caught in the Crossfire deals 2 damage to each outlaw creature. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)
+ — Caught in the Crossfire deals 2 damage to each non-outlaw creature.

This spell can't be countered. (This includes the ward ability.)
Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. Suspect it.

Chain of Plasma deals 3 damage to any target. Then that player or that permanent's controller may discard a card. If the player does, they may copy this spell and may choose a new target for that copy.

Chandra's Defeat deals 5 damage to target red creature or red planeswalker. If that permanent is a Chandra planeswalker, you may discard a card. If you do, draw a card.

Chandra's Fury deals 4 damage to target player or planeswalker and 1 damage to each creature that player or that planeswalker's controller controls.

Chandra's Outrage deals 4 damage to target creature and 2 damage to that creature's controller.

Chandra's Pyrohelix deals 2 damage divided as you choose among one or two targets.

Chandra's Triumph deals 3 damage to target creature or planeswalker an opponent controls. Chandra's Triumph deals 5 damage instead if you control a Chandra planeswalker.

Choose one —
• Destroy target Wall.
• Chaos Charm deals 1 damage to target creature.
• Target creature gains haste until end of turn.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

The owner of target permanent shuffles it into their library. Then they look at the top card of their library and may wrap it. If it's a permanent card, they may put it onto the battlefield. Otherwise, they put it onto the battlefield face down as a 4/4 red Present creature. (To wrap a card, put it inside lots of sleeves. If it would be dealt damage or destroyed, remove a sleeve from it instead.)

Target spell or permanent becomes red. (Its mana symbols remain unchanged.)

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

Cast this spell only during combat after blockers are declared.
Flip a coin. If you win the flip, target creature gets +1/+1 until end of turn.
Draw a card.

Char deals 4 damage to any target and 2 damage to you.

Gain control of target spell that targets only a single permanent or player. Copy it, then reselect the targets at random for the spell and the copy. The new targets can't be you or a permanent you control.

This spell can't be copied.
Choose one or both —
• Copy target instant or sorcery spell you control. You may choose new targets for the copy.
• Copy target creature spell you control. The copy gains haste and "At the beginning of the end step, sacrifice this token."

Destroy target creature. If a white creature dies this way, Cinder Cloud deals damage to that creature's controller equal to the creature's power.

Kicker
Cinderclasm deals 1 damage to each creature. If it was kicked, it deals 2 damage to each creature instead.

Target creature fights another target creature.

Radiance — Cleansing Beam deals 2 damage to target creature and each other creature that shares a color with it.

As an additional cost to cast this spell, sacrifice a creature.
Collateral Damage deals 3 damage to any target.