Moroii

a Vampire attacks — 484 cards in the game can cause this (Moroii is one).

1. Glass-Cast Heart — When Moroii attacks, Glass-Cast Heart makes a token
2. Sanctum Seeker — When Moroii attacks, Sanctum Seeker makes each opponent lose 1 life

a nontoken Vampire attacks — 484 cards in the game can cause this (Moroii is one).

1. Mavren Fein, Dusk Apostle — When Moroii attacks, Mavren Fein, Dusk Apostle makes a token

a Vampire creature is cast — 484 cards in the game can cause this (Moroii is one).

1. Bloodlord of Vaasgoth — When Moroii is cast, Bloodlord of Vaasgoth grants bloodthirst

a Vampire deals combat damage — 484 cards in the game can cause this (Moroii is one).

When Moroii deals combat damage:

1. Rakish Heir — puts a counter on a permanent
2. Stensia Masquerade — puts a counter on a permanent

a Vampire enters the battlefield — 500 cards in the game can cause this (Moroii is one).

1. Anje, Maid of Dishonor — When Moroii enters, Anje, Maid of Dishonor makes a token
2. Forerunner of the Legion — When Moroii enters, Forerunner of the Legion gives +1/+1
3. Markov Enforcer — When Moroii enters, Markov Enforcer deals damage
4. Evelyn, the Covetous — When Moroii enters, Evelyn, the Covetous exiles a card from a library

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

When Moroii makes a player lose life:

1. The Master of Lake-town — mills a card
2. Intermediate Chirography — puts a counter on a creature
3. Vilis, Broker of Blood — draws you that many cards
4. Vengeful Warchief — puts a +1/+1 counter on itself
5. Wax-Wane Witness — gets +1/+0
6. Oath of Lim-Dûl — sacrifices an enchantment
7. Marina Vendrell's Grimoire — triggers
8. Lich's Mastery — triggers
9. Lich's Tomb — sacrifices a permanent
10. Gonti's Machinations — puts a counter on a permanent you control

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

anything attacks — 17,934 cards in the game can cause this (Moroii is one).

1. Far Fortune, End Boss — When Moroii attacks, Far Fortune, End Boss deals 1 damage
2. Temmet, Naktamun's Will — When Moroii attacks, Temmet, Naktamun's Will draws you 1 card
3. Grim Javelineer — When Moroii attacks, Grim Javelineer gives +1/+0
4. Invisible Woman — When Moroii attacks, Invisible Woman triggers
5. Caesar, Legion's Emperor — When Moroii attacks, Caesar, Legion's Emperor sacrifices a creature
6. Guide of Souls — When Moroii attacks, Guide of Souls triggers
7. Campsite Cuisine — When Moroii attacks, Campsite Cuisine sacrifices a Food
8. Gossip's Talent — When Moroii attacks, Gossip's Talent triggers
9. Banon, the Returners' Leader — When Moroii attacks, Banon, the Returners' Leader draws and discards
10. Toph, Earthbending Master — When Moroii attacks, Toph, Earthbending Master puts a counter on a permanent

111 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 (Moroii is one).

1. Adaptive Omnitool — When Moroii attacks, Adaptive Omnitool searches a library
2. Anthem of Rakdos — When Moroii attacks, Anthem of Rakdos gives +2/+0
3. Kindred Discovery — When Moroii attacks, Kindred Discovery draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — When Moroii attacks, Invasion of New Capenna // Holy Frazzle-Cannon puts counters on a permanent
5. Chorale of the Void — When Moroii attacks, Chorale of the Void brings a card back
6. Jolene, Plundering Pugilist — When Moroii attacks, Jolene, Plundering Pugilist makes a token
7. Saw — When Moroii attacks, Saw sacrifices a creature
8. Gisa's Favorite Shovel — When Moroii attacks, Gisa's Favorite Shovel makes an opponent sacrifice a creature
9. Ultima Weapon — When Moroii attacks, Ultima Weapon kills a creature an opponent controls
10. Total War — When Moroii attacks, Total War kills a creature

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

a creature blocks — 17,934 cards in the game can cause this (Moroii is one).

1. Mage Hunters' Onslaught — When Moroii blocks, Mage Hunters' Onslaught makes a player lose 1 life
2. Carnage Gladiator — When Moroii blocks, Carnage Gladiator makes a player lose 1 life
3. Barrow-Blade — When Moroii blocks, Barrow-Blade strips abilities
4. Heat of Battle — When Moroii blocks, Heat of Battle deals 1 damage
5. Battle Strain — When Moroii blocks, Battle Strain deals 1 damage
6. Favor of the Woods — When Moroii blocks, Favor of the Woods gains you 3 life
7. Tide of War — When Moroii blocks, Tide of War sacrifices a creature
8. Dead-Iron Sledge — When Moroii blocks, Dead-Iron Sledge kills a creature
9. Dwindle — When Moroii blocks, Dwindle kills a creature
10. Shield of the Righteous — When Moroii blocks, Shield of the Righteous triggers

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

a nontoken creature attacks — 17,934 cards in the game can cause this (Moroii is one).

1. Mardu Ascendancy — When Moroii attacks, Mardu Ascendancy makes a token
2. Basri Ket — When Moroii attacks, Basri Ket makes a token
3. Militia's Pride — When Moroii attacks, Militia's Pride makes a token

a creature enters the battlefield — 19,800 cards in the game can cause this (Moroii is one).

1. Slash, Reptile Rampager — When Moroii enters, Slash, Reptile Rampager deals 2 damage
2. Ray Fillet, Wave Warrior — When Moroii enters, Ray Fillet, Wave Warrior puts a counter on itself
3. The Neutrinos — When Moroii enters, The Neutrinos gets +1/+0
4. Wingnut, Bat on the Belfry — When Moroii enters, Wingnut, Bat on the Belfry grants flying, haste and menace
5. Aetherstorm Roc — When Moroii enters, Aetherstorm Roc puts a counter on a permanent you control
6. Raphael, Most Attitude — When Moroii enters, Raphael, Most Attitude exiles a card from your library

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

anything enters the battlefield — 26,499 cards in the game can cause this (Moroii is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Moroii enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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