Nefarious Imp

a permanent leaves the battlefield — 315 cards in the game can cause this.

1. Cloudstone Curio — When a permanent leaves the battlefield thanks to Cloudstone Curio, Nefarious Imp scries
2. Lich — When Lich leaves the battlefield, Nefarious Imp scries
3. Stitcher's Graft — When Stitcher's Graft leaves the battlefield, Nefarious Imp scries
4. Worldslayer — When Worldslayer leaves the battlefield, Nefarious Imp scries
5. Liliana, Dreadhorde General — When a creature leaves the battlefield thanks to Liliana, Dreadhorde General, Nefarious Imp scries
6. Lich's Tomb — When Lich's Tomb leaves the battlefield, Nefarious Imp scries
7. Mindlash Sliver — When Mindlash Sliver leaves the battlefield, Nefarious Imp scries
8. Mindwhip Sliver — When Mindwhip Sliver leaves the battlefield, Nefarious Imp scries
9. Liliana of the Veil — When a creature leaves the battlefield thanks to Liliana of the Veil, Nefarious Imp scries
10. Ugin's Construct — When Ugin's Construct leaves the battlefield, Nefarious Imp scries

305 other cards cause it too. These are the ones with the most connections.

you scry — 420 cards in the game can cause this (Nefarious Imp is one).

When Nefarious Imp scries:

1. Prudent Fateseer // Peer Review — gives +1/+0
2. Diviner of Victory // Unwind History — gets +1/+1
3. Saheeli, Consul of Oversight — makes a token
4. Celeborn the Wise — makes your creatures bigger
5. Proft, Consulting Detective — puts a +1/+1 counter on itself
6. Matoya, Archon Elder — draws you 1 card
7. Denzilore Fatehold — puts a counter on a creature
8. Elminster — costs less
9. Elrond, Master of Healing — puts a counter on a creature
10. Galadriel of Lothlórien — puts a land onto the battlefield

10 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 (Nefarious Imp is one).

When Nefarious Imp 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

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 (Nefarious Imp is one).

When Nefarious Imp 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

181 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 (Nefarious Imp is one).

When Nefarious Imp blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Barrow-Blade — strips abilities
4. Heat of Battle — deals 1 damage
5. Battle Strain — deals 1 damage
6. Favor of the Woods — gains you 3 life
7. Tide of War — sacrifices a creature
8. Dead-Iron Sledge — kills a creature
9. Dwindle — kills a creature
10. 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 (Nefarious Imp is one).

When Nefarious Imp attacks:

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

a creature deals combat damage — 17,934 cards in the game can cause this (Nefarious Imp is one).

When Nefarious Imp deals combat damage:

1. Locutus of Borg — makes a token
2. Antagonist Incorporator — makes a token
3. Hive Mind Coprocessor — makes you lose life

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

a creature is cast — 18,010 cards in the game can cause this (Nefarious Imp is one).

When Nefarious Imp is cast:

1. Primeval Bounty — makes a token
2. Bloodbond March — brings a card back
3. Dancing from Dark to Dawn — puts that spell's mana value counters on a creature
4. Endrek Sahr, Master Breeder — makes that spell's mana value tokens
5. Summon: Fenrir — it arrives with counters thanks to Summon: Fenrir
6. Summon: Brynhildr — grants haste
7. Skittering Horror — sacrifices itself

84 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 (Nefarious Imp is one).

When Nefarious Imp 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

299 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 (Nefarious Imp is one).

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

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