Legendary Creature — Mutant Advisor

Marcus, Mutant Mayor

Mana value5EDHREC#6,240

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The Commander

Whenever a creature you control deals combat damage to a player, draw a card if that creature has a +1/+1 counter on it. If it doesn't, put a +1/+1 counter on it.

Guide

Gameplan

Marcus rewards connecting with creatures: hit a player with a counterless creature to grow it, then every subsequent hit with a counter-bearing creature draws a card. Build a wide or evasive board, stick counters everywhere, and snowball into a massive card advantage engine that overwhelms the table. You win through trampling beaters, evasive swarms, or counter-multiplier blowouts.

Strengths

Generates explosive card advantage in green, a color that traditionally struggles to draw
Synergizes with the entire +1/+1 counter package already strong in GU
Self-sufficient: even a single unblocked creature buffs itself and snowballs
Vigilance and trample on the commander make it a real threat that defends while attacking

Weaknesses

Reliant on combat connecting — board wipes and Fog effects shut off the engine
Needs creatures to already be unblocked, so chump blocks and deathtouch slow it down
No built-in protection; removal on Marcus stalls the card draw
Can be grindy against fast combo decks that ignore the board

Key Cards

Hardened Scales — Doubles counters Marcus places, accelerating creatures past the draw threshold faster.
Branching Evolution — Multiplies the +1/+1 counters going onto your team for bigger trampling threats.
Ezuri, Claw of Progress — Floods the board with counters each combat, feeding Marcus's draw triggers.
Rite of Replication — Kicked copies of an evasive creature each connect for a counter or a card, snowballing instantly.
Coastal Piracy — Stacks even more card draw on top of Marcus whenever creatures connect.
Inkshield — Punishes the removal and combat damage that this strategy invites onto you.

Upgrade Path

Add counter doublers (Doubling Season, Branching Evolution, Hardened Scales) and proliferate effects to push creatures past the draw threshold quickly. Lean into evasion — Rogue's Passage, Tetsuko Umezawa, and trample/flying enablers guarantee combat connects. Tighten the mana base, add protection like Heroic Intervention and Lightning Greaves, and consider an overrun finisher such as Craterhoof Behemoth or Overwhelming Stampede to convert the wide board into a kill.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Trampling over the table with oversized counter-laden creatures
▸Card-advantage snowball into overwhelming board presence
▸Evasive go-wide beatdown with fliers or unblockable creatures
▸Counter-doubler blowouts creating one lethal threat

Archetypes

+1/+1 Counters — Marcus natively places counters and rewards creatures that have them, slotting into the entire GU counters shell.
Go-Wide Tokens — Many small evasive bodies each trigger Marcus for counters then cards, multiplying draws.
Voltron — A single trampling evasive creature can grow huge and draw cards every turn.
Value Midrange — Marcus turns ordinary combat into a card engine to grind out longer games.