Mjölnir, Storm Hammer

a creature becomes tapped — 565 cards in the game can cause this (Mjölnir is one).

When a creature becomes tapped thanks to Mjölnir, Storm Hammer:

1. Stinging Licid — deals 2 damage
2. Gideon's Avenger — puts a +1/+1 counter on itself
3. Lust for War — deals 3 damage
4. Insolence — deals 2 damage
5. Seizures — deals 3 damage
6. Betrayal — draws you 1 card
7. Spirit Shackle — puts a counter on a permanent
8. Palliation Accord — puts a palliation counter on itself
9. Cryoshatter — kills a creature
10. Don't Move — kills a creature

11 other cards care about it too. These are the ones with the most connections.

a nontoken Equipment enters the battlefield — 649 cards in the game can cause this (Mjölnir is one).

1. Firion, Wild Rose Warrior — When Mjölnir, Storm Hammer enters, Firion, Wild Rose Warrior makes a token

an Equipment enters the battlefield — 658 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer enters:

1. Puresteel Paladin — draws you 1 card
2. Sokka and Suki — makes a token
3. Barret, Avalanche Leader — makes a token
4. The Mighty Thor, Jane Foster — draws you 1 card
5. Giott, King of the Dwarves — draws and discards
6. Hammer of Nazahn — triggers
7. Sigarda's Aid — triggers

5 other cards care about it too. These are the ones with the most connections.

anything deals noncombat damage — 3,068 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer deals noncombat damage:

1. Quest for Pure Flame — puts a quest counter on itself
2. Fear of Burning Alive — deals that amount damage
3. Niv-Mizzet, Visionary — draws you that many cards
4. Chandra's Incinerator — deals that much damage
5. Chandra's Pyreling — gets +1/+0
6. Talon of Pain — puts a charge counter on itself
7. Asgardian Inspiration — returns itself from the graveyard
8. Thor, Guardian of Midgard — exiles a card from your library
9. Virtue of Courage // Embereth Blaze — exiles a card from your library

37 other cards care about it too. These are the ones with the most connections.

life is lost — 3,160 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer makes a player lose life:

1. Far Fortune, End Boss — raises your speed
2. Zahur, Glory's Past — raises your speed
3. Mendicant Core, Guidelight — raises your speed
4. Aether Syphon — raises your speed
5. Vnwxt, Verbose Host — raises your speed
6. Embalmed Ascendant — raises your speed
7. Slick Imitator — raises your speed
8. Nesting Bot — raises your speed
9. Howlsquad Heavy — raises your speed
10. Hour of Victory — raises your speed

46 other cards care about it too. These are the ones with the most connections.

an artifact is cast — 3,683 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer is cast:

1. Master Pakku — gets +1/+1
2. Soul-Scar Mage — gets +1/+1
3. Tomik, Izzet Sparkmage — gets +1/+1
4. Sai, Master Thopterist — makes a token
5. Ravenous Robots — makes a token
6. Pinnacle Emissary — makes a token
7. Mirrodin Besieged — makes a token
8. Poetic Ingenuity — makes a token
9. Artist's Talent — draws and discards
10. Dr. Madison Li — puts a counter on a permanent you control

271 other cards care about it too. These are the ones with the most connections.

a nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer enters:

1. Ultron, Artificial Malevolence — makes a token
2. The Prydwen, Steel Flagship — makes a token
3. Conquest Mission — puts a quest counter on itself
4. Surge Conductor — proliferates
5. Replication Specialist — makes a token
6. Weapons Manufacturing — makes a token
7. Mirrorworks — makes a token

anything gets a counter — 4,415 cards in the game can cause this (Mjölnir is one).

1. All Will Be One — When a permanent gets a counter thanks to Mjölnir, Storm Hammer, All Will Be One deals that much damage

7 other cards care about it too. These are the ones with the most connections.

an artifact it grants abilities to — 4,531 cards in the game can cause this.

1. Darksteel Forge — Darksteel Forge gives Mjölnir, Storm Hammer indestructible

4,530 other cards cause it too. These are the ones with the most connections.

an artifact it applies untap to — 4,531 cards in the game can cause this.

1. Unwinding Clock — Unwinding Clock gives Mjölnir, Storm Hammer an extra untap

4,530 other cards cause it too. These are the ones with the most connections.

an artifact enters the battlefield — 4,643 cards in the game can cause this (Mjölnir is one).

When Mjölnir, Storm Hammer enters:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life

62 other cards care about it too. These are the ones with the most connections.

a creature attacks — 17,934 cards in the game can cause this.

1. Eldrazi Mimic — When Eldrazi Mimic attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
2. Abstruse Archaic — When Abstruse Archaic attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
3. Twins of Discord — When Twins of Discord attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
4. Omnath, Locus of the Void — When Omnath, Locus of the Void attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
5. Blight Herder — When Blight Herder attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
6. Breaker of Creation — When Breaker of Creation attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
7. Old Thrush — When Old Thrush attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
8. Skittering Cicada — When Skittering Cicada attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
9. Sire of Seven Deaths — When Sire of Seven Deaths attacks, Mjölnir, Storm Hammer taps a creature an opponent controls
10. Thought-Knot Seer — When Thought-Knot Seer attacks, Mjölnir, Storm Hammer taps a creature an opponent controls

17,924 other cards cause it too. These are the ones with the most connections.