Devourer of Memory

a Nightmare enters the battlefield — 151 cards in the game can cause this (Devourer of Memory is one).

1. Umbris, Fear Manifest — When Devourer of Memory enters, Umbris, Fear Manifest exiles a card from an opponent's library

a card in a graveyard — 7,589 cards in the game can cause this (Devourer of Memory is one).

1. Samwise Gamgee — Devourer of Memory puts cards into the graveyard that Samwise Gamgee can bring back
2. Bloodbond March — Devourer of Memory puts cards into the graveyard that Bloodbond March can bring back
3. Thor, God of Thunder — Devourer of Memory puts cards into the graveyard that Thor, God of Thunder can bring back
4. Gale, Waterdeep Prodigy — Devourer of Memory puts cards into the graveyard that Gale, Waterdeep Prodigy can bring back
5. Harness the Storm — Devourer of Memory puts cards into the graveyard that Harness the Storm can bring back
6. Transplant Theorist — Devourer of Memory puts cards into the graveyard that Transplant Theorist can bring back
7. Heart-Shaped Herb — Devourer of Memory puts cards into the graveyard that Heart-Shaped Herb can bring back
8. Wayward Angel — Devourer of Memory fills your graveyard toward the 7 or more cards Wayward Angel needs
9. Rescue from the Underworld — Devourer of Memory puts cards into the graveyard that Rescue from the Underworld can bring back
10. Victimize — Devourer of Memory puts cards into the graveyard that Victimize can bring back

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

anything goes to a graveyard — 7,589 cards in the game can cause this.

1. Quest for Ancient Secrets — When a card hits the graveyard thanks to Devourer of Memory, Quest for Ancient Secrets puts a quest counter on itself
2. Planar Void — When a card hits the graveyard thanks to Devourer of Memory, Planar Void hits a graveyard
3. Lively Dirge — When a card hits the graveyard thanks to Lively Dirge, Devourer of Memory gets +1/+1
4. Gravebreaker Lamia — When a card hits the graveyard thanks to Gravebreaker Lamia, Devourer of Memory gets +1/+1
5. Vizier of the Anointed — When a creature hits the graveyard thanks to Vizier of the Anointed, Devourer of Memory gets +1/+1
6. Oriq Loremage — When a card hits the graveyard thanks to Oriq Loremage, Devourer of Memory gets +1/+1
7. Corpse Connoisseur — When a creature hits the graveyard thanks to Corpse Connoisseur, Devourer of Memory gets +1/+1
8. Disciples of Gix — When an artifact hits the graveyard thanks to Disciples of Gix, Devourer of Memory gets +1/+1
9. Iname, Death Aspect — When a Spirit hits the graveyard thanks to Iname, Death Aspect, Devourer of Memory gets +1/+1
10. Phantom Carriage — When a card hits the graveyard thanks to Phantom Carriage, Devourer of Memory gets +1/+1
11. Cynical Loner — When a card hits the graveyard thanks to Cynical Loner, Devourer of Memory gets +1/+1
12. Vile Entomber — When a card hits the graveyard thanks to Vile Entomber, Devourer of Memory gets +1/+1
13. Measure of Wickedness — When a card hits the graveyard thanks to Devourer of Memory, Measure of Wickedness gives an opponent control of itself
14. Energy Field — When a card hits the graveyard thanks to Devourer of Memory, Energy Field sacrifices itself

14 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 (Devourer of Memory is one).

When Devourer of Memory attacks:

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

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 (Devourer of Memory is one).

When Devourer of Memory attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Anim Pakal, Thousandth Moon — puts a +1/+1 counter on itself
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. Total War — kills a creature

188 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 (Devourer of Memory is one).

When Devourer of Memory 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

25 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 (Devourer of Memory is one).

1. Mardu Ascendancy — When Devourer of Memory attacks, Mardu Ascendancy makes a token

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

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

When Devourer of Memory enters:

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

341 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 (Devourer of Memory is one).

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

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