Phyrexian
Native to Phyrexia, Dominaria and Rath. Invaders of Serra's Realm and Mercadia. Phyrexians are not a single creature type, but are represented in the game by a wide variety of classifications, reflecting the vast number of forms they can come in. Phyrexians are horrors created through a combination of necromancy, scruplous organic recycling, and cybernetic enhancement. Most Phyrexians are born, fully organic, from "birth vats" filled with the recycled corpses of victims. Through a process known as "compleation" they are gradually augmented with ever more grotesque mechanical upgrades. They are considered to be fully Phyrexian once their blood has been replaced with synthetic glistening oil, though the surgical enhancements continue.
The "average" Phyrexian has only the most simple mind of its own, with the majority of its intellect slaved to the will of Yawgmoth, the "Father of Machines" who founded Phyrexia. Through his limitless army of monstrosities Yawgmoth patiently sought to re-conquer Dominaria, the plane of his birth.
Yawgmoth, whilst ruler of the Thran city-state of Halcyon, created the first Phyrexians using a surgical process he called "phyresis." A keen scientist with a megalomaniacal, sadistic bent, Yawgmoth sought to improve his army to conquer the rest of the plane. To this end, he established a connection to the vacant metal plane of Phyrexia, an endless private laboratory over which he had godlike control. He was eventually defeated on Dominaria and sealed away in Phyrexia, where he continued his cybernetic experiments in preparation of his return. The seal was inadvertently reopened thousands of years later by Urza, who would later become a powerful planeswalker sworn to destroy Yawgmoth. When Phyrexia finally invaded, they merged their staging-ground plane of Rath with Dominaria and swept over the world. Urza finally sacrificed himself to destroy Yawgmoth, and this act wiped out most of the Phyrexian army. The few drones that survived persisted as confused, mindless stragglers that were eventually picked off (several became attractions in Otaria's pitfighting colliseums).
During Rift-Era Dominaria, Phyrexians are re-introduced to the plane from an alternate timeline, one in which their invasion was successful. These Phyrexians posed a threat to both Urborg and Keld, but were cut off from their master once through the rifts. This left them easy prey to the Weaver King, a psychic parasite who used them to try and conquer both islands. His death, and the sealing of the rifts, ended this anachronistic new Invasion.
(Phyrexian Negator, Phyrexian Scuta, Witch Engine, Tsabo Tavoc)
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