Boomerang

Return target permanent to its owner's hand.

Detonate

Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller.

Electric Eel

When Electric Eel enters, it deals 1 damage to you.
{R}{R}: Electric Eel gets +2/+0 until end of turn and deals 1 damage to you.

Mishra's Factory

{T}: Add {C}.
{1}: Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Braingeyser

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Force Spike

Counter target spell unless its controller pays {1}.

Island

Ancestral Recall

Red Elemental Blast

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

Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

Counterspell

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.

Mountain

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.

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Strip Mine

{T}: Add {C}.
{T}, Sacrifice Strip Mine: Destroy target land.

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.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Blue Elemental Blast

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

Mox Sapphire

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Blood Moon

Time Walk

Volcanic Island

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Shatter

Sol Ring

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.

Falling Star

Flip Falling Star onto the playing area from a height of at least one foot. Falling Star deals 3 damage to each creature it lands on. Tap all creatures dealt damage by Falling Star. If Falling Star doesn't turn completely over at least once during the flip, it has no effect.

Mox Ruby

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Hammerheim

{T}: Add {R}.
{T}: Target creature loses all landwalk abilities until end of turn.