When Old One Eye enters, create a 5/5 green Tyranid creature token.
FastHealing — At the beginning of your first main phase, you may discard two cards. If you do, return this card from your graveyard to your hand.
Old One Eye is a mono-green beatdown commander that anchors a big-creature stompy deck: cast huge threats, grant the whole team trample, and crash in for massive chunks that ignore chump blockers. Each cast nets a 5/5 token, and FastHealing lets you recur it from the graveyard for two cards even without a black recursion suite. Ramp into Old One Eye early, build a wide board of fatties, then overrun with trample damage.
Trample anthem makes every blocker into chump-fodder, turning a stalled board into lethal damage
Free 5/5 token on every entry plus self-recursion gives relentless, mana-efficient pressure
Mono-green means cheap, consistent ramp and rock-solid mana for casting expensive monsters
Resilient commander that returns itself, dodging commander-tax punishment and removal value
No evasion beyond trample—flyers and ground gridlock can still race or stonewall you
Mono-green has very little interaction, removal, or answers to combo and control decks
Board wipes are devastating since the deck commits heavily to the battlefield
FastHealing costs card advantage (discard two), straining a color already weak at card draw
No built-in card advantage engine; can run out of gas against grindy tables