Mjölnir, Storm Hammer
Legendary Artifact — Equipment
When Mjölnir enters, attach it to target legendary creature you control.
Whenever equipped creature attacks, tap target creature defending player controls and put a stun counter on it. Then Mjölnir deals damage to each opponent equal to the number of tapped creatures that opponent controls.
Equip 
- CMC
- 4
- Mana cost
- Color identity
- C
- Rarity
- rare
- Set
- Assassin's Creed
- Price
- $1.31
- EDHREC rank
- #3221
Mjölnir, Storm Hammer lands as a repeatable tap-to-deal-damage engine that scales with your creature's power — the kind of reach that closes games without needing combat. The catch is the equip cost, which punishes low-mana turns, but in a deck built around Kratos, God of War, the payoff justifies the investment.
Best Commanders
Commanders with the highest synergy
Kratos, God of War
Kratos, God of War triggers off dealing noncombat damage, and Mjölnir, Storm Hammer turns every tap into a damage event — meaning each activation can chain directly into Kratos's draw and removal triggers. It's in over 55% of Kratos decks for good reason: it's the equipment that makes the engine hum.
Captain America, First Avenger
Captain America, First Avenger cares about Legendary creatures and equipment matters payoffs, and Mjölnir, Storm Hammer fits both lanes — it's Legendary Equipment that rewards you for suiting up. Showing up in over 52% of Captain America, First Avenger lists reflects how cleanly it slots into the Avengers tribal package.
Ratonhnhaké꞉ton
Ratonhnhaké꞉ton rewards equipping efficiently, and Mjölnir, Storm Hammer gives the commander a source of reach that doesn't rely on combat connecting. A 33% inclusion rate in Ratonhnhaké꞉ton decks tracks with how useful the tap ability is when the board gets stalled.
Hylda of the Icy Crown
Hylda of the Icy Crown wins by tapping creatures — opponents' and your own — and Mjölnir, Storm Hammer lets you weaponize your own tap triggers into direct damage. It slots into Hylda of the Icy Crown lists as both an aggressive tool and a way to generate the tap events the deck wants.
Lara Croft, Tomb Raider
Lara Croft, Tomb Raider builds around artifacts and Equipment, so Mjölnir, Storm Hammer is a natural inclusion — it's a Legendary artifact that does real work in combat and out. The 19% inclusion rate in Lara Croft, Tomb Raider decks suggests it's a role-player rather than a staple, but its noncombat damage output earns its spot.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Mjölnir, Storm Hammer does its best work — the 100-card singleton format gives it room to breathe alongside creature-focused commanders who benefit from repeatable noncombat damage or equipment synergies. In Legacy and Vintage it's technically legal but competes in formats where a three-mana artifact with an equip cost rarely makes the cut over faster, cheaper options. Modern is the one constructed format worth a second look, specifically in equipment-based or tap-synergy shells, though it's a fringe consideration at best. Pioneer, Standard, and Pauper are off the table, so Commander and Oathbreaker are the practical homes — and between the two, Commander's multiplayer environment rewards the sustained damage output far more than Oathbreaker's faster clock.
Key Combos
Combo lines featuring this card
Price Context
Current price
$1.31 cheap tier
At $1.31, Mjölnir, Storm Hammer sits in the buy-without-thinking tier — you're paying budget prices for a card that shows up in over 55% of its best commander's lists. Price is unlikely to be a barrier for any deck that wants it, and the Legendary Equipment type gives it enough long-term appeal to hold this floor.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.