Fludge, Gunk Guardian

An anti-library engine dressed up as a tribal payoff. Where most creature-based value engines reward you for building up your own board, this one attacks the opponent's most sacred resource: the ordering of their deck. Every time a Slug, Ooze, Fungus, or Mutant lands under your control, each opponent shuffles three blank sorceries into their library, diluting their draws with cards that do nothing except cycle for four mana. It is punishment by entropy, spread across a set of tribes broad enough that "the deck" almost builds itself around any creature that happens to be gooey, sluggish, or moldy. The design idea worth noting is how the payoff scales with velocity rather than size: a stack of cheap creatures that trigger repeatedly does far more work than the 5/5 body suggests, because each entrance jams three more Gunk cards into a shrinking pool of real spells. The Gunk cards themselves are the balancing tension: they carry cycling , so a patient opponent can slowly scrub them out, turning the whole plan into a race between how fast you can pollute and how much mana they can spend digging clean. That makes this a grind card, not a lock; it wants a game long enough for the junk to matter, and creatures cheap enough to keep the shuffles coming.