
Indestructible
As long as your devotion to blue and black is less than seven, Phenax isn't a creature.
Creatures you control have ": Target player mills X cards, where X is this creature's toughness."
Phenax turns your whole board into a mill engine: tap creatures to grind opponents' libraries based on each creature's toughness. You ramp into fatties or token swarms with high toughness, then mill one or more players out before they can win. Early turns set up high-toughness defenders and recursion; mid-game you tap out to dump 30-100+ cards per opponent.
Add untap engines (Intruder Alarm, Kiora's Follower, Thousand-Year Elixir) and toughness payoffs to break parity and mill faster, then bolster protection with counterspells and graveyard-hate answers like Bojuka Bog to stop recursion. Lean into a token or 'enters' subtheme so Intruder Alarm goes infinite, and include strong card advantage (Rhystic Study, Mystic Remora) plus interaction so the slow clock survives the table.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
→ Infinite mill for target opponent, Near-infinite mill
→ Infinite mill for target opponent
→ Infinite mill for target opponent
→ Infinite mill for target opponent, Near-infinite mill
→ Infinite mill for target opponent
Combos via Commander Spellbook.
Same color identity (BU), by popularity.