Loading commander data
Mary O'Kill
Legendary Creature — Human Villain
{1}{B/R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)
5 / 5
$0.20Buy on TCGPlayer
“Swap creatures in/out to dodge removal and generate endless value.”
Midrange
Intermediate
Combat damage, Sacrifice synergies
Sacrifice, Tokens, Aristocrats
Strategy
Mary O'Kill is a 5/5 commander that lets you swap creatures between your hand and battlefield, preserving all their states—tapped, counters, equipment, everything. This opens up wild utility plays: untap your commander mid-combat, dodge removal by swapping to a fresh copy in hand, or cycle attackers to reset their combat status. The real magic happens when you pair her with token generators or creatures that benefit from entering/leaving play, turning the swap ability into a pseudo-blink engine that also thins your hand.
Build around Killobots and sacrifice synergies to maximize the switching. Pack creatures with enter-the-battlefield triggers (like Fleshbag Marauder effects), death triggers (Zulaport Cutthroat), and tokens that can absorb swaps. Mana rocks and cost-reduction effects are crucial since you're paying {1}{B/R} repeatedly. Your win condition is usually attrition—grinding value through repeated swaps while your board presence or sacrifice payoffs rack up damage over time.
This is a grindy midrange deck that rewards clever sequencing and timing. It's not a combo machine, but it rewards forward-thinking plays and can absolutely outvalue opponents who aren't prepared for the value engine.
Strategy generated by Tapped Decks AI. Not affiliated with Wizards of the Coast.
Key Synergies
Budget Build
Skip expensive tutors and planeswalkers; lean on free sacrifice outlets like Viscera Seer and token generators like Bitterblossom or Dreadhorde Invasion instead.
Community Decks
No public decks for Mary O'Kill yet.
Build a Deck →Be the first to publish one — Commander-tier members can share decks with the community.
Explore More Commanders
Build a deck with Mary O'Kill
Our deck builder picks the 99 other cards for you. Two minutes to a complete, balanced list.
Build a Deck with This Commander →Card data via Scryfall