Unknown Event

Omenpath Instability

Omenpath Instability

Phenomenon
When you encounter this phenomenon, each player creates an Entropy enchantment token with "Sacrifice this enchantment: Chaos ensues. Activate only as a sorcery" and an Omenpath enchantment token with "Sacrifice this enchantment: Planeswalk. Activate only as a sorcery." (Then Planeswalk away from this phenomenon.)
Preston's Stage

Preston's Stage

Plane - Las Vegas
Whenever a player performs a magic trick, they create a Hat token. (You perform a magic trick when you cast an instant or spell with flash, or turn a face-down creature face-up. Hat tokens are artifact tokens with "{1}, {T}, Sacrifice this artifact: Create a 1/1 white Rabbit creature token.")
Whenever Chaos ensues, until your next turn, creature cards in your hand have flash.
Pursued by Something

Pursued by Something

Plane - Duskmourn
At the beginning of your second main phase, if you control a tapped creature, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)
Whenever Chaos ensues, exile target creature. If it's an instant or sorcery, cast it without paying its mana cost. Otherwise put it onto the battlefield under its owner's control.
Raiders' Allegiance

Raiders' Allegiance

Plane - Ixalan
Raid — At the beginning of your second main phase, for each player dealt combat damage this turn, you get a point counter and create a 2/2 black Pirate creature token with menace.
Whenever you planeswalk away from here, each player with the most point counters or tied for the most point counters creates three Treasure tokens and draws three cards. Then remove all point counters from each player.
Whenever Chaos ensues, proliferate for each Pirate you control.
Team-Up!

Team-Up!

Phenomenon
Whenever you encounter this Phenomenon, for the rest of the game, each player wins the game if the players to their left and right are eliminated. (Multiple players can win the game this way.)
The Sphere

The Sphere

Plane - Las Vegas
Whenever a creature you control becomes blocked, round both its power and toughness up to the nearest 5. (A creature with 5 power would round up to 5.).
Whenever Chaos ensues, Amass Fans 5. (Put five +1/+1 counters on an Army you control. It's also a Fan. If you don't control an army, create a 0/0 red Fan Army creature token first.)
Welcome to Valley

Welcome to Valley

Plane - Bloomburrow
Whenever you cast an animal spell, draw a card. (Animals are any non-human creature types that are animals in real life.)
Whenever Chaos ensues, create a token that's a copy of target creature you control, except it's a 1/1.
Cinnamon, Seasoned Steed

Cinnamon, Seasoned Steed {1}

Legendary Artifact Creature - Food Horse
Other Food creatures you control have horsemanship. (They can't be blocked except by creatures with horsemanship.)
At the beginning of your combat step, you may put a +1/+1 counter on target noncreature Food you control. If you do, it becomes a 0/0 Knight creature in addition to its other types.
{2}, {T}, Sacrifice Cinnamon, Seasoned Steed: You gain 3 life.
1/1
Goblin Savant

Goblin Savant {2}

Artifact Creature - Goblin Wizard
{T}: Exile the top card of your library. If that card is a Goblin or an artifact card, you may play it this turn.
2/1
Huge Truck

Huge Truck {2}

Artifact - Vehicle
Beeeeeeep, Beeeeeeep, Beeeeeeep — Whenever another creature you control becomes the target of a backup ability, Huge Truck permanently gains all of the backup abilities shared this way.
Crew 1
3/3
Jitte and Divining Top

Jitte and Divining Top {2}

Legendary Artifact - Equipment
Whenever equipped creature deals combat damage, put 2 charge counters on Jitte and Divining Top.
Remove a charge counter from Jitte and Divining Top: Choose one —
• You gain 2 life.
• Look at the top 3 cards of your library, then put them back in any order.
• Tap Jitte and Divining Top. If you do, draw a card, then put Jitte and Divining Top on top of its owner's library.
Equip {1}
Spice Rack

Spice Rack {2}

Artifact
As Spice Rack enters the battlefield, choose an opponent.
The chosen player's maximum Commander size is one. (They can only have one commander in their command zone. If they ever have more than one, they must put any excess commanders into their graveyard.)
Cycling {2}
Bob the Claymore

Bob the Claymore {3}

Legendary Artifact - Equipment
Whenever equipped creature becomes blocked, each creature blocking it gets -5/-5 until end of turn.
Whenever equipped creature deals combat damage to an opponent, you may search your library for a Praetor card, reveal it, and put it into your hand. Then shuffle.
Equip {3}
Luxior and Shadowspear

Luxior and Shadowspear {2}

Legendary Artifact - Equipment
Equipped creature gets +1/+1 for each counter on it, and has trample and lifelink.
{1}: Permanents your opponents control lose hexproof and indestructible until end of turn.
Equipped permanent isn't a planeswalker and is a creature in addition to its other types.
Equip creature or planeswalker {3}
Manakin and Millikin

Manakin and Millikin {3}

Artifact Creature - Construct
{T}, Mill a card: Add {C}{C}.
1/2
Phyrexian Incubator

Phyrexian Incubator {5}

Artifact
{3}, {T}, Sacrifice Phyrexian Incubator: Search your library for any number of Phyrexian cards or cards with phyrexian back faces, exile them, then incubate 2 that many times. Then shuffle.
Glorious Dragon-Kin

Glorious Dragon-Kin {7}

Artifact Creature - Dragon
Flying
As Glorious Dragon-Kin enters the battlefield, choose a color.
Artifact creatures and Dragons you control have protection from the chosen color.
6/6
Oilskelion

Oilskelion {5}

Creature - Construct
Oil Sunburst (This enters the battlefield with an oil counter on it for each color of mana spent to cast it.)
Remove an oil counter from Oilskelion: Oilskelion deals 1 damage to any target.
4/4
Platinum Persecutor

Platinum Persecutor {5}

Artifact Creature - Angel Demon
Flying
Players can't lose the game or win the game.
At the beginning of your upkeep, if each player has an empty library, sacrifice Platinum Persecutor and you win the game.
5/5
Soul of Mirrodin

Soul of Mirrodin {6}

Artifact Creature - Spirit
Trample
{5}: Search your library for an artifact card with mana value 5 or less, put it onto the battlefield tapped, then shuffle.
{5}, Exile Soul of Mirrodin from your graveyard: Search your library for an artifact card with mana value 5 or less, put it onto the battlefield tapped, then shuffle.
6/6
Sword of Fire and Ice and War and Peace

Sword of Fire and Ice and War and Peace {6}

Artifact - Equipment
Equipped creature gets +4/+4 and has protection from white, blue, and red.
Whenever equipped creature deals combat damage to an opponent, Sword of Fire and Ice and War and Peace deals 2 damage to any target and you draw a card. Then, it deals damage to defending player equal to the number of cards in their hand and you gain 1 life for each card in your hand.
Equip {4}
Sharp Eraser

Sharp Eraser {6}

Artifact
{2}, {T}: Reveal cards from the top of your library until you reveal a nonland card. You may erase any number of words on the card, including flavor text, as long as the card still makes sense. Then cast the revised card without paying its mana cost. Put all other cards revealed this way on the bottom of your library in a random order.
Battle Myrsphere

Battle Myrsphere {7}

Artifact Creature - Phyrexian Myr
When Battle Myrsphere enters the battlefield, reveal cards from the top of your library until you reveal a battle card. Put it onto the battlefield, and the rest on the bottom of your library in a random order.
Whenever Battle Myrsphere attacks, you may tap X untapped battles you control (so they're oriented like a regular Magic card). If you do, Battle Myrsphere gets +X/+0 until end of turn and deals X damage to the player or permanent.
4/7
Chancellor of the Mulligan

Chancellor of the Mulligan {7}

Artifact Creature - Phyrexian Construct
You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, shuffle it into your library and draw a card.
Menace
When Chancellor of the Mulligan enters the battlefield, draw three cards. When you do, any number of players mulligan. (They shuffle their hand into their library, then draw that many cards and put one of them on the bottom of their library.)
7/7
Mindslaver Toolkit

Mindslaver Toolkit {0}

Artifact
{T}: Target opponent gains control of Mindslaver Toolkit.
{X}, {T}: Choose any number —
• You lose X life.
• You discard X cards.
• You sacrifice X permanents.