Legendary Creature — Jellyfish Advisor

Mm'menon, the Right Hand

Mana value5EDHREC#5,718

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The Commander

Flying

You may look at the top card of your library any time.

You may cast artifact spells from the top of your library.

Artifacts you control have " {T} : Add {U} . Spend this mana only to cast a spell from anywhere other than your hand."

Guide

Gameplan

Mm'menon turns your library into a second hand for artifacts and powers them up as a mana engine that funds non-hand casting. You flood the board with cheap artifacts, then chain spells off the top of your library while tapping your artifacts for blue mana to keep casting, aiming to out-value or storm off into a game-ending payoff.

Strengths

Generates significant card advantage by casting artifacts straight off the top of your library
Artifacts double as a dedicated mana engine for cast-from-top and other zone casting
Mono-blue gives access to strong counterspells, card filtering, and protection
Naturally enables artifact-storm and cost-reduction synergies

Weaknesses

Heavily reliant on the commander; removal stops the whole engine
Mono-blue struggles to remove resolved permanents and lacks board wipes
Top-of-library casting only helps if the top card is an artifact — clunky without filtering
Artifact-heavy boards are vulnerable to mass artifact destruction

Key Cards

Sensei's Divining Top — Reorders your library so the artifact you want is always castable off the top.
Mystic Forge — Stacks redundancy with Mm'menon for casting artifacts and noncreature spells off the top.
Sai, Master Thopterist — Turns your flood of artifact casts into a token army and card draw.
Etherium Sculptor — Cost reduction lets you chain many artifacts in a single turn alongside Mm'menon's mana.
Brilliant Restoration — Recovers a wrecked board, refunding the artifacts your engine depends on.

Upgrade Path

Add fast mana and cost reducers (Mana Vault, Mind Stone, Foundry Inspector, Cloud Key) to chain more casts per turn, plus library manipulation (Scroll Rack, Brainstorm) to guarantee castable tops. Lean into a tight combo finish such as Aetherflux Reservoir with cheap artifacts, or Isochron Scepter loops, and protect the commander with counterspells and Lightning Greaves to keep the engine online.

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

▸Artifact storm into a payoff like Aetherflux Reservoir or a big Thopter swarm
▸Infinite/near-infinite mana loops with artifacts feeding lab-style or burn finishers
▸Grinding card advantage to overwhelm with value engines and tokens
▸Aggregate evasive damage via flying artifact tokens

Archetypes

Artifacts — His abilities reward a dense artifact base for mana and top-of-library casting.
Combo — Free or cheap artifacts plus the cast-from-top mana enable loops and storm finishes.
Control — Mono-blue counters and card advantage let you grind while assembling your engine.
Spellslinger — The cast-from-anywhere mana fuels casting from graveyard, exile, and top alongside cantrips.