Marcus, Mutant Mayor

a Mutant attacks — 139 cards in Marcus's colors can cause this (Marcus is one).

1. Wolverine, Claws Out — When Marcus, Mutant Mayor attacks, Wolverine, Claws Out makes your creatures bigger

a Mutant enters the battlefield — 141 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor enters:

1. Genghis Frog — makes a token
2. X-23, Deadly Weapon — puts a counter on a permanent
3. April O'Neil, Live on the Scene — triggers

a card is drawn — 1,895 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor makes a player draw a card:

1. Aether Syphon — mills a card
2. Diviner's Wand — gets +1/+1
3. Ominous Seas — puts a foreshadow counter on itself
4. Iron Man, Armored Avenger — puts a counter on a creature
5. The Astonishing Ant-Man — puts a +1/+1 counter on itself
6. Psychosis Crawler — makes each opponent lose 1 life
7. Lyla, Holographic Assistant — puts a counter on a creature
8. Data, New Life — puts a +1/+1 counter on itself
9. Chasm Skulker — puts a +1/+1 counter on itself
10. Nadir Kraken — puts a +1/+1 counter on itself

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

anything gets a counter — 1,933 cards in Marcus's colors can cause this (Marcus is one).

1. Lonis, Genetics Expert — When Lonis, Genetics Expert gets a counter thanks to Marcus, Mutant Mayor, it triggers

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

a creature attacks — 6,391 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. The Earth King — searches a library
4. Screaming Swarm — mills a card
5. Imperious Mindbreaker — mills a card
6. Staff of Titania — makes a token
7. Fractal Harness — puts counters on a permanent
8. Saw — sacrifices a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Throwing Knife — sacrifices itself

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

anything attacks — 6,391 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Madame Web, Clairvoyant — mills a card
3. Bonny Pall, Clearcutter — draws you 1 card
4. Hazardroot Herbalist — gives +1/+0
5. Ranger Class — puts a counter on a creature
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers
8. Toph, Earthbending Master — puts a counter on a permanent
9. Alora, Merry Thief — triggers
10. Twins of Discord — triggers

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

a creature blocks — 6,391 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor blocks:

1. Barrow-Blade — strips abilities
2. Favor of the Woods — gains you 3 life
3. Gift of the Woods — gives +0/+3
4. Noxious Assault — puts a counter on a permanent
5. Ferocity — puts a counter on a permanent
6. Mammoth Harness — grants first strike
7. Dead-Iron Sledge — kills a creature
8. Dwindle — kills a creature

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

a creature is cast — 6,423 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor is cast:

1. Primeval Bounty — makes a token
2. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
3. Summon: Fenrir — it arrives with counters thanks to Summon: Fenrir
4. Mona Lisa, Ever Adaptable — makes a token
5. Champions of the Perfect — draws you 1 card
6. Masked Admirers — returns itself from the graveyard
7. Primordial Sage — draws you 1 card
8. Oketra's Monument — makes a token
9. Beast Whisperer — draws you 1 card
10. Silverback Elder — triggers

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

a nontoken creature enters the battlefield — 6,528 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor enters:

1. Dual Nature — makes a token
2. Arni, Humble Scribe — untaps itself
3. Bramble Sovereign — makes a token
4. Soul of the Harvest — draws you 1 card
5. Lonis, Cryptozoologist — triggers

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

a creature enters the battlefield — 7,050 cards in Marcus's colors can cause this (Marcus is one).

When Marcus, Mutant Mayor enters:

1. Ray Fillet, Wave Warrior — puts a counter on itself
2. Legolas Greenleaf — puts a counter on a permanent

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