Legendary Creature — Dragon Spirit

Miirym, Sentinel Wyrm

Mana value6EDHREC#1,406

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The Commander

Flying, ward {2}

Whenever another nontoken Dragon you control enters, create a token that's a copy of it, except the token isn't legendary.

Guide

Gameplan

Ramp into Miirym by turn 4-5, then deploy big nontoken Dragons that each leave a copy token behind, snowballing into an overwhelming board of fliers. You win by doubling the value of every Dragon's enter-the-battlefield trigger and beating down through the air, often with extra combat or burn finishers.

Strengths

Doubles every nontoken Dragon's ETB, generating massive value off cards like Terror of the Peaks and Scourge of Valkas
Ward and flying make Miirym sticky and hard to interact with cheaply
Temur colors give access to the best ramp, card draw, and Dragon payoffs in the format
Token copies stick around if Miirym dies, banking value you've already earned

Weaknesses

Hugely commander-dependent—if Miirym is gone, your Dragons stop copying
High average mana value means stumbling on ramp is punishing
Vulnerable to board wipes that erase a wide, expensive board at once
Token copies are nonlegendary but still trigger 'legend rule' issues only on the original; sequencing matters and can be clunky

Key Cards

Terror of the Peaks — Each Dragon ETB (including the copies) deals damage equal to power, turning your board into a burn engine and a wincon.
Scourge of Valkas — Every Dragon entering pings for damage scaling with Dragon count, doubled by Miirym for explosive reach.
Dragon Tempest — Combines flying anthem with ETB burn that scales as copies flood the battlefield.
Kindred Discovery — Naming Dragon turns every nontoken Dragon and its copy into two cards drawn, refilling your hand fast.
Old Gnawbone — Each combat with this Dragon and its copy generates a flood of Treasure to recast more threats.
Ancient Copper Dragon — The copy means double the Treasure dump, ramping you absurdly ahead.
Dragonlord's Servant — Cost reducers are essential to chain multiple Dragons per turn under Miirym.

Upgrade Path

Trim clunky high-MV Dragons that lack ETB or attack triggers in favor of efficient value Dragons and stronger ramp (Three Visits, Nature's Lore, Signets). Add cost reducers (Dragonlord's Servant, Goreclaw) and protection (Heroic Intervention, Lightning Greaves) so Miirym survives removal and you can chain multiple Dragons per turn. For higher power, lean into the Terror of the Peaks + Ancient Gold Dragon + extra-combat lines and add fast mana like Mana Crypt and Jeska's Will.

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

▸Swarm of doubled flying Dragons attacking for lethal
▸Terror of the Peaks or Scourge of Valkas burning the table out via stacked ETBs
▸Extra combat steps (Aggravated Assault, Combat Celebrant) with a doubled Dragon army
▸Ancient Gold Dragon tokens overwhelming or comboing into infinite triggers

Archetypes

Tribal Midrange — Miirym rewards stacking the best nontoken Dragons and doubling their bodies and triggers.
Value/ETB Engine — Copying ETB triggers from Dragons creates relentless card and damage advantage.
Combo — Doubling Treasure/ETB Dragons like Ancient Gold Dragon enables explosive token and mana loops.
Aristocrats-lite — Extra Dragon copies fuel sacrifice payoffs and damage triggers like Terror of the Peaks.