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.

Whenever a creature you control dies, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

When this creature leaves the battlefield, sacrifice a land and this creature deals 1 damage to you.

When this creature enters, target opponent loses 3 life.

When this creature dies, all creatures get -1/-1 until end of turn.

, Sacrifice this creature: Draw a card.

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

: Add .

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

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

, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Reach, lifelink

Whenever Polukranos or another nontoken Hydra you control dies, create a 3/3 green and white Phyrexian Hydra creature token with reach and a 3/3 green and white Phyrexian Hydra creature token with lifelink.

At the beginning of combat on your turn, target creature you control gets +1/+1 until end of turn. If that creature has toxic, instead it gets +2/+2 until end of turn.

When this creature enters, add .

, Sacrifice an artifact: Add an amount of equal to the sacrificed artifact's mana value.

When this creature enters, incubate 3 X times. (To incubate 3, create an Incubator token with three +1/+1 counters on it and ": Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)

: Transform target Incubator token you control.

Trample, haste

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 the end step, sacrifice this creature.

, : Destroy target tapped nonblack creature.

, : Search your library for a Mercenary permanent card with mana value 3 or less, put it onto the battlefield, then shuffle.

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

, : Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

Flying

Whenever this creature attacks, it gets +2/+0 until end of turn.

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

Whenever a source deals damage to this creature, that source's controller gets a poison counter.

Trample

Whenever a source deals damage to Rona, that source's controller exiles a card from their hand at random. If it's a land card, you may put it onto the battlefield under your control. Otherwise, you may cast it without paying its mana cost.

: Put an oil counter on this creature.

, Remove an oil counter from this creature: Untap target land.

: This creature gains flying until end of turn.

, Sacrifice this creature: Draw a card.

Whenever you proliferate, each opponent loses 2 life and you gain 2 life.

When this creature enters, you draw a card and you lose 1 life.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

When this creature enters, choose one —

• Put a +1/+1 counter on target artifact or creature you control.

• Transform target Incubator token you control.

Flying

Pay 2 life: Return Selenia to its owner's hand.

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

Whenever this creature attacks, if defending player is poisoned, it gets +1/+1 until end of turn.

Flying

When this creature dies, each player discards a card.

Flying

Whenever you cast a noncreature spell, put an oil counter on this creature.

Remove three oil counters from this creature: Draw a card. Then you may discard a nonland card. When you discard a card this way, this creature deals 3 damage to target creature or planeswalker. Activate only as a sorcery.

Menace

When Sheoldred enters, each opponent sacrifices a nontoken creature or planeswalker of their choice.

: Exile Sheoldred, then return it to the battlefield transformed under its owner's control. Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice.

Protection from white

Flying

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

When this creature enters, put three -1/-1 counters on target creature.

Flying

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

: Skithiryx gains haste until end of turn.

: Regenerate Skithiryx.

Flying

When you cast a creature spell, sacrifice this creature.

Flying

When this creature transforms into Skyclave Invader, look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

Slag Fiend's power and toughness are each equal to the number of artifact cards in all graveyards.

Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

Whenever another creature you control with toxic attacks, it gets +1/+1 until end of turn.

Flying

, Sacrifice this creature: Draw a card.

If a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals double that damage to that player or permanent instead.

, Discard two cards: Put an indestructible counter on Solphim. ( can be paid with either or 2 life.)

Permanent cards in graveyards can't enter the battlefield.

Players can't cast noncreature spells from graveyards or exile.

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

You may have this creature assign its combat damage as though it weren't blocked.

This creature can't block.

At the beginning of your upkeep, this creature deals 3 damage to target creature you control.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

When this creature dies, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This token can't block."

Whenever another creature you control enters, you may gain 1 life.

Whenever a creature an opponent controls enters, you may have that player lose 1 life.

Flying

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

Whenever another creature you control enters, you may pay . If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

: Regenerate this creature.