Crimson Cowl, Master of Evil

a Villain enters the battlefield — 99 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When a Villain enters thanks to Crimson Cowl, Master of Evil:

1. Doom Reigns Supreme — makes each opponent lose 1 life
2. Crossbones, Malicious Mercenary — puts a +1/+1 counter on itself
3. Yellowjacket, Heartless Marauder — gets +1/+0
4. Swordsman, Sharp Scoundrel — triggers
5. Baron Strucker, HYDRA Overlord — draws and discards

a token is created — 726 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When Crimson Cowl, Master of Evil makes a Villain token:

1. Idol of Oblivion — draws you 1 card
2. Mirkwood Bats — makes each opponent lose 1 life

a creature attacks — 3,478 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When Crimson Cowl, Master of Evil attacks:

1. Adaptive Omnitool — searches a library
2. Chorale of the Void — brings a card back
3. Staff of Titania — makes a token
4. Inquisitorial Rosette — makes a token
5. Wand of Orcus — grants deathtouch
6. Andúril, Flame of the West — makes 2 tokens
7. Saw — sacrifices a creature
8. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
9. Ultima Weapon — kills a creature an opponent controls
10. Throwing Knife — sacrifices itself

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

anything attacks — 3,478 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When Crimson Cowl, Master of Evil attacks:

1. Grim Javelineer — gives +1/+0
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Fire Navy Trebuchet — makes a token
4. Stensian Sanguinist // Exsanguinate — grants deathtouch
5. Rev, Tithe Extractor — grants deathtouch
6. Boggart Prankster — gives +1/+0
7. Within Range — makes each opponent lose life
8. Curse of Disturbance — makes a token
9. Dawnsire, Sunstar Dreadnought — deals 100 damage
10. Twins of Discord — triggers

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

a creature blocks — 3,478 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When Crimson Cowl, Master of Evil blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Barrow-Blade — strips abilities
3. Dead-Iron Sledge — kills a creature

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

a creature deals combat damage — 3,478 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

1. Hive Mind Coprocessor — When Crimson Cowl, Master of Evil deals combat damage, Hive Mind Coprocessor makes you lose life

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

a creature is cast — 3,493 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When Crimson Cowl, Master of Evil is cast:

1. Endrek Sahr, Master Breeder — makes that spell's mana value tokens
2. Oketra's Monument — makes a token
3. Bontu's Monument — makes each opponent lose 1 life
4. Vanquisher's Banner — draws you 1 card
5. Rhonas's Monument — gives +2/+2
6. Skittering Horror — sacrifices itself
7. Skittering Skirge — sacrifices itself
8. Skittering Monstrosity — sacrifices itself
9. Hazoret's Monument — draws and discards
10. Kefnet's Monument — triggers

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

a nontoken creature enters the battlefield — 3,680 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

1. Minion Reflector — When Crimson Cowl, Master of Evil enters, Minion Reflector makes a token

a creature enters the battlefield — 3,967 cards in Crimson Cowl's colors can cause this (Crimson Cowl is one).

When a Villain enters thanks to Crimson Cowl, Master of Evil:

1. Ayara, First of Locthwain — makes each opponent lose 1 life
2. Blasting Station — untaps itself
3. Bloodline Pretender — puts a +1/+1 counter on itself
4. Snarling Gorehound — surveils
5. Soultether Golem — puts a time counter on itself
6. Poisonbelly Ogre — makes a player lose 1 life
7. Monkey Cage — sacrifices itself
8. Tainted Aether — makes a player sacrifice a creature or land
9. Lethal Vapors — kills it
10. Spreading Plague — kills a creature

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