The Vicious Swarm
The green-aligned faction aims to create a natural state in which predation will thrive unhindered. Vorinclex, Voice of Hunger, seeks to eliminate sentience in favor of power. Consumption and strength are all that matter in the Tangle now. To accomplish his goals, Vorinclex has a powerful and ruthless ally: Glissa Sunseeker has become Glissa, the Traitor.
Despite having Hunger in the ostensible leader's name and the fetish the leadership of the sect has for "predators", Phyrexians don't need to eat. Which would explain how Vorinclex thinks an ecosystem of only predators can exist.