Whenever you cast a Phyrexian creature or artifact creature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) At the beginning of each end step, if a Phyrexian died under your control this turn, proliferate.

Whenever a creature you control attacks, defending player loses 1 life and you gain 1 life. {3}{R/W}{R/W}: Creatures your opponents control block this turn if able, and you choose how those creatures block.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) When Crawling Chorus dies, create a 1/1 colorless Phyrexian Mite artifact creature token with toxic 1 and "This creature can't block."

Deathtouch Whenever another creature enters the battlefield under your control, you gain 1 life. Whenever another creature you control dies, each opponent loses 1 life.

When Grafted Butcher enters the battlefield, Phyrexians you control gain menace until end of turn. Other Phyrexians you control get +1/+1. {3}{B}, Sacrifice an artifact or creature: Return Grafted Butcher from your graveyard to the battlefield. Activate only as a sorcery.

Whenever another creature enters the battlefield under your control, you gain 1 life.

Creatures you control have skulk. (They can't be blocked by creatures with greater power.) {4}{W}: Creatures you control get +1/+1 until end of turn.

Choose one — • Charge of the Mites deals damage equal to the number of creatures you control to target creature or planeswalker. • Create two 1/1 colorless Phyrexian Mite artifact creature tokens with toxic 1 and "This creature can't block." (Players dealt combat damage by them also get a poison counter.)

({T}: Add {W}.)