As Outpost Siege enters, choose Khans or Dragons.

• Khans — At the beginning of your upkeep, exile the top card of your library. Until end of turn, you may play that card.

• Dragons — Whenever a creature you control leaves the battlefield, Outpost Siege deals 1 damage to any target.

Counter target spell.

At the beginning of your next upkeep, pay . If you don't, you lose the game.

Artifacts you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

At the beginning of your upkeep, if you control the artifact with the highest mana value or tied for the highest mana value, draw a card.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

At the beginning of your upkeep, sacrifice a creature if you don't control an Ogre.

At the beginning of each upkeep, if you lost life last turn, put a +1/+1 counter on Paladin of Atonement.

When Paladin of Atonement dies, you gain life equal to its toughness.

At the beginning of your upkeep, put a spore counter on Pallid Mycoderm.

Remove three spore counters from Pallid Mycoderm: Create a 1/1 green Saproling creature token.

Sacrifice a Saproling: Each creature you control that's a Fungus or a Saproling gets +1/+1 until end of turn.

Imprint — , : You may exile an instant or sorcery card with mana value X from your hand.

At the beginning of your upkeep, you may copy a card exiled with Panoptic Mirror. If you do, you may cast the copy without paying its mana cost.

Enchant creature

Fading 1 <I>(This enchantment enters with one fade counter on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)</I>

Enchanted creature gets +3/+2.

When Parallax Dementia leaves the battlefield, destroy enchanted creature. That creature can't be regenerated.

Fading 5 <I>(This enchantment enters with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)</I>

Remove a fade counter from Parallax Tide: Exile target land.

When Parallax Tide leaves the battlefield, each player returns to the battlefield all cards they own exiled with Parallax Tide.

Enchant creature

When Paralyze enters, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

At the beginning of the upkeep of enchanted creature's controller, that player may pay . If the player does, untap the creature.

Enchant creature

At the beginning of your upkeep, enchanted creature's controller sacrifices it and you create a 1/1 colorless Phyrexian Myr artifact creature token.

Delirium — Patchwork Beastie can't attack or block unless there are four or more card types among cards in your graveyard.

At the beginning of your upkeep, you may mill a card. (You may put the top card of your library into your graveyard.)

At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, Paupers' Cage deals 2 damage to that player.

Enchant creature

Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost."

At the beginning of each opponent's upkeep, they lose 1 life and you put a -1/-1 counter on up to one target creature they control.

Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Flying

At the beginning of your upkeep, sacrifice Phantasmal Forces unless you pay .

Flying; fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

At the beginning of your upkeep, you draw a card and you lose 1 life.

Flying, trample

At the beginning of your upkeep, exile the top card of your library and balance it on your body.

When a balanced card falls or touches another balanced card, sacrifice Phyrexian Librarian.

Cumulative upkeep—Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

At the beginning of your upkeep, you get a poison counter.

At the beginning of each player's upkeep, that player may sacrifice a creature of their choice. If that player doesn't, they lose 5 life and you sacrifice Pillar Tombs of Aku.

At the beginning of your upkeep, put a devotion counter on Pious Kitsune. Then if a creature named Eight-and-a-Half-Tails is on the battlefield, you gain 1 life for each devotion counter on Pious Kitsune.

, Remove a devotion counter from Pious Kitsune: You gain 1 life.

Flying, first strike

At the beginning of your upkeep, sacrifice Pit Raptor unless you pay .

At the beginning of your upkeep, you lose 2 life.

Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

At the beginning of your end step, sacrifice each other creature you control.

Discard two cards, Sacrifice Plague Reaver: Choose target opponent. Return Plague Reaver to the battlefield under that player's control at the beginning of their next upkeep.

At the beginning of your upkeep, Plague Spitter deals 1 damage to each creature and each player.

When Plague Spitter dies, it deals 1 damage to each creature and each player.

At the beginning of your upkeep, if there are four or more creatures on the battlefield, sacrifice Planar Collapse and destroy all creatures. They can't be regenerated.

At the beginning of your upkeep, each player exiles cards from the top of their library until they exile a nonland card. An opponent chooses a nonland card exiled this way. You may cast up to two spells from among the other cards exiled this way without paying their mana costs.

Trample

Polar Kraken enters tapped.

Cumulative upkeep—Sacrifice a land. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever you cast an instant or sorcery spell, create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

At the beginning of your upkeep, if you control three or more creature tokens, you may transform Poppet Stitcher.

When Portal to Phyrexia enters, each opponent sacrifices three creatures of their choice.

At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control. It's a Phyrexian in addition to its other types.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Enchant enchantment

At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way.

Enchant enchantment

At the beginning of the upkeep of enchanted enchantment's controller, that player loses 2 life unless they pay .

Cycling (, Discard this card: Draw a card.)

At the beginning of your upkeep, look at the top two cards of your library. You may sacrifice Preferred Selection and pay . If you do, put one of those cards into your hand. If you don't, put one of those cards on the bottom of your library.

Players have no maximum hand size.

At the beginning of each opponent's upkeep, Price of Knowledge deals damage to that player equal to the number of cards in that player's hand.

When Priest of the Blood Rite enters, create a 5/5 black Demon creature token with flying.

At the beginning of your upkeep, you lose 2 life.

Enchant creature

At the beginning of your upkeep, put a +1/+1 counter on enchanted creature.

When enchanted creature attacks or blocks, sacrifice Primal Cocoon.

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

Primordial Ooze attacks each combat if able.

At the beginning of your upkeep, put a +1/+1 counter on Primordial Ooze. Then you may pay , where X is the number of +1/+1 counters on it. If you don't, tap Primordial Ooze and it deals X damage to you.

Enchant creature

At the beginning of your upkeep, you may put a page counter on Private Research.

When enchanted creature dies, draw a card for each page counter on Private Research.

Return target permanent card from your graveyard to the battlefield.

Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

At the beginning of your upkeep, surveil 1. You win the game if there are eight or more different names among unlocked doors of Rooms you control.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

At the beginning of your upkeep, repeat the following process for each opponent in turn order. Reveal the top card of your library. That player may pay life equal to that card's mana value. If they do, exile that card. Otherwise, put it into your hand.

As Psychic Allergy enters, choose a color.

At the beginning of each opponent's upkeep, Psychic Allergy deals X damage to that player, where X is the number of nontoken permanents of the chosen color they control.

At the beginning of your upkeep, destroy Psychic Allergy unless you sacrifice two Islands.

At the beginning of your upkeep, put a spore counter on Psychotrope Thallid.

Remove three spore counters from Psychotrope Thallid: Create a 1/1 green Saproling creature token.

, Sacrifice a Saproling: Draw a card.

, : Create a 0/1 blue Homunculus artifact creature token.

At the beginning of your upkeep, sacrifice a Homunculus.

At the beginning of your upkeep, Purging Scythe deals 2 damage to the creature with the least toughness. If two or more creatures are tied for least toughness, you choose one of them.

At the beginning of your upkeep, if Pyre Zombie is in your graveyard, you may pay . If you do, return Pyre Zombie to your hand.

, Sacrifice Pyre Zombie: It deals 2 damage to any target.