Nihiloor

a Horror deals combat damage — 382 cards in the game can cause this (Nihiloor is one).

1. Captain N'ghathrod — When Nihiloor deals combat damage, Captain N'ghathrod mills a card

life is gained — 2,076 cards in the game can cause this (Nihiloor is one).

When Nihiloor gains life:

1. Dina, Soul Steeper — makes each opponent lose 1 life
2. Marina Vendrell's Grimoire — draws you that many cards
3. South Wind Avatar — makes each opponent lose 1 life
4. Rodolf Duskbringer — grants indestructible
5. Fiendish Panda — puts a +1/+1 counter on itself
6. Veinwitch Coven — brings a card back
7. Cleric Class — puts a counter on a creature
8. Lich's Mastery — draws you that many cards
9. Wall of Limbs — puts a +1/+1 counter on itself
10. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers

84 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 (Nihiloor is one).

When a permanent makes a player lose life thanks to Nihiloor:

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.

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

When Nihiloor attacks:

1. Temmet, Naktamun's Will — draws you 1 card
2. Grim Javelineer — gives +1/+0
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers
8. Banon, the Returners' Leader — draws and discards
9. Toph, Earthbending Master — puts a counter on a permanent
10. Three Dog, Galaxy News DJ — sacrifices an Aura

116 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. Adaptive Omnitool — When Nihiloor attacks, Adaptive Omnitool searches a library
2. Anthem of Rakdos — When Nihiloor attacks, Anthem of Rakdos gives +2/+0
3. Kindred Discovery — When Nihiloor attacks, Kindred Discovery draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — When Nihiloor attacks, Invasion of New Capenna // Holy Frazzle-Cannon puts counters on a permanent
5. Chorale of the Void — When Nihiloor attacks, Chorale of the Void brings a card back
6. Anim Pakal, Thousandth Moon — When Nihiloor attacks, Anim Pakal, Thousandth Moon puts a +1/+1 counter on itself
7. Umara Wizard // Umara Skyfalls — When Umara Wizard // Umara Skyfalls attacks, Nihiloor gains you 2 life
8. Norn's Choirmaster — When Norn's Choirmaster attacks, Nihiloor gains you 2 life
9. Defiler of Dreams — When Defiler of Dreams attacks, Nihiloor gains you 2 life
10. Defiler of Flesh — When Defiler of Flesh attacks, Nihiloor gains you 2 life
11. Losheel, Clockwork Scholar — When Losheel, Clockwork Scholar attacks, Nihiloor gains you 2 life
12. Elas il-Kor, Sadistic Pilgrim — When Elas il-Kor, Sadistic Pilgrim attacks, Nihiloor gains you 2 life
13. Loran, Disciple of History — When Loran, Disciple of History attacks, Nihiloor gains you 2 life
14. Sage's Row Denizen — When Sage's Row Denizen attacks, Nihiloor gains you 2 life
15. Snarling Gorehound — When Snarling Gorehound attacks, Nihiloor gains you 2 life
16. Suture Priest — When Suture Priest attacks, Nihiloor gains you 2 life
17. Saw — When Nihiloor attacks, Saw sacrifices a creature
18. Gisa's Favorite Shovel — When Nihiloor attacks, Gisa's Favorite Shovel makes an opponent sacrifice a creature
19. Ultima Weapon — When Nihiloor attacks, Ultima Weapon kills a creature an opponent controls
20. Total War — When Nihiloor attacks, Total War kills a creature

5,234 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 (Nihiloor is one).

When Nihiloor blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Tide of War — sacrifices a creature
4. Dead-Iron Sledge — kills a creature
5. Dwindle — kills a creature

23 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 (Nihiloor is one).

When Nihiloor attacks:

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

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

When Nihiloor enters:

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

302 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 (Nihiloor is one).

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

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