Tainted Aether

Whenever a creature enters, its controller sacrifices a creature or land of their choice.

Energy Tap

Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's mana value.

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Control Magic

Enchant creature
You control enchanted creature.

Wrath of God

Destroy all creatures. They can't be regenerated.

Mind Twist

Target player discards X cards at random.

Bribery

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Wildfire

Each player sacrifices four lands of their choice. Wildfire deals 4 damage to each creature.

Blinding Angel

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever Blinding Angel deals combat damage to a player, that player skips their next combat phase.

Counterspell

Annex

Enchant land (Target a land as you cast this. This card enters attached to that land.)
You control enchanted land.

Primal Order

At the beginning of each player's upkeep, Primal Order deals damage to that player equal to the number of nonbasic lands they control.

Intrepid Hero

{T}: Destroy target creature with power 4 or greater.

Plague Wind

Destroy all creatures you don't control. They can't be regenerated.

Righteous Fury

Destroy all tapped creatures. You gain 2 life for each creature destroyed this way.

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Animate Dead

Enchant creature card in a graveyard
When Animate Dead enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with Animate Dead." Return enchanted creature card to the battlefield under your control and attach Animate Dead to it. When Animate Dead leaves the battlefield, that creature's controller sacrifices it.
Enchanted creature gets -1/-0.

Equilibrium

Whenever you cast a creature spell, you may pay {1}. If you do, return target creature to its owner's hand.

Chromium

Flying
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)
At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.

Evacuation

Return all creatures to their owners' hands.

Winds of Change

Each player shuffles the cards from their hand into their library, then draws that many cards.

Grave Pact

Whenever a creature you control dies, each other player sacrifices a creature of their choice.

Seedborn Muse

Untap all permanents you control during each other player's untap step.

Demonic Tutor

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

Mindslicer

When Mindslicer dies, each player discards their hand.

Underworld Dreams

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Planar Portal

{6}, {T}: Search your library for a card, put that card into your hand, then shuffle.

Mana Breach

Whenever a player casts a spell, that player returns a land they control to its owner's hand.

Sol Ring

Opposition

Tap an untapped creature you control: Tap target artifact, creature, or land.

Kismet

Artifacts, creatures, and lands your opponents control enter tapped.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Telepathy

Your opponents play with their hands revealed.

Triskelion

Triskelion enters with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.

Celestial Dawn

Lands you control are Plains.
Nonland permanents you control are white. The same is true for spells you control and nonland cards you own that aren't on the battlefield.
You may spend white mana as though it were mana of any color. You may spend other mana only as though it were colorless mana.

Blight

Enchant land
When enchanted land becomes tapped, destroy it.

Rewind

Counter target spell. Untap up to four lands.

Oppression

Whenever a player casts a spell, that player discards a card.

Larceny

Whenever a creature you control deals combat damage to a player, that player discards a card.

Nevinyrral's Disk

Nevinyrral's Disk enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Hurkyl's Recall

Return all artifacts target player owns to their hand.

Persecute

Choose a color. Target player reveals their hand and discards all cards of that color.