Fludge, Gunk Guardian
Legendary Creature — Slug Ooze, {3}{B}{G}
Oracle Text
Whenever Fludge, Gunk Guardian or another Slug, Ooze, Fungus, or Mutant enters the battlefield under your control, each opponent shuffles three Gunk cards into their library. (Gunk is a colorless sorcery card with no mana cost that has cycling {4}.)