Dreadhorde Arcanist

an instant in a graveyard — 2 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Makeshift Mannequin — When Makeshift Mannequin is in the graveyard, Dreadhorde Arcanist can bring it back
2. Supper for Spiders — When Supper for Spiders is in the graveyard, Dreadhorde Arcanist can bring it back

an instant leaves a graveyard — 202 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Murktide Regent — When an instant leaves a graveyard thanks to Dreadhorde Arcanist, Murktide Regent puts a +1/+1 counter on itself

a Zombie deals combat damage — 657 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Undead Alchemist — When Dreadhorde Arcanist deals combat damage, Undead Alchemist mills a card

a Zombie attacks — 657 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Varina, Lich Queen — When Dreadhorde Arcanist attacks, Varina, Lich Queen draws you that many cards

a nontoken Zombie enters the battlefield — 661 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Necroduality — When Dreadhorde Arcanist enters, Necroduality makes a token

a Zombie enters the battlefield — 795 cards in the game can cause this (Dreadhorde Arcanist is one).

When Dreadhorde Arcanist enters:

1. Noxious Ghoul — shrinks a creature by -1/-1
2. Geralf, the Fleshwright — puts counters on a permanent
3. Wayward Servant — makes each opponent lose 1 life
4. Champion of the Perished — puts a +1/+1 counter on itself
5. Mummy Paramount — gets +1/+1
6. Unconventional Tactics — returns itself from the graveyard
7. Binding Mummy — taps a creature or artifact

a nontoken Wizard enters the battlefield — 1,243 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Inalla, Archmage Ritualist — When Dreadhorde Arcanist enters, Inalla, Archmage Ritualist makes a token

a Wizard creature enters the battlefield — 1,264 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Diviner's Wand — When Dreadhorde Arcanist enters, Diviner's Wand triggers

a creature leaves a graveyard — 1,302 cards in the game can cause this (Dreadhorde Arcanist is one).

When Dreadhorde Arcanist leaves a graveyard:

1. Grim Reaper's Scythe — makes a token
2. Syr Konrad, the Grim — deals 1 damage
3. Cyan, Vengeful Samurai — puts a +1/+1 counter on itself
4. Along the Crooked Way — puts a counter on a Goblin or Army
5. Skeleton Crew — makes a token
6. Desecrated Tomb — makes a token
7. Chalk Outline — makes a token
8. Insidious Roots — makes a token
9. Undead Hand Ninja — makes each opponent lose 1 life
10. Rot Farm Mortipede — gets +1/+0

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

anything is exiled — 2,497 cards in the game can cause this (Dreadhorde Arcanist is one).

1. The War Doctor — When Dreadhorde Arcanist is exiled, The War Doctor puts a time counter on itself

1 other card cares about it too. These are the ones with the most connections.

anything leaves a graveyard — 2,503 cards in the game can cause this (Dreadhorde Arcanist is one).

When Dreadhorde Arcanist leaves a graveyard:

1. Blastoneuron — makes each opponent lose 1 life
2. Defiled Crypt // Cadaver Lab — makes a token
3. Teval, the Balanced Scale — makes a token
4. Hologram Stalker — makes a token
5. Tormod, the Desecrator — makes a token
6. Quintorius, Field Historian — makes a token
7. Garrison Excavator — makes a token
8. Amzu, Swarm's Hunger — makes a token
9. Kirol, History Buff // Pack a Punch — becomes prepared
10. Teval's Judgment — triggers

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

a sorcery is cast — 3,720 cards in the game can cause this (Dreadhorde Arcanist is one).

1. Electro, Assaulting Battery — When an instant is cast thanks to Dreadhorde Arcanist, Electro, Assaulting Battery adds 1 mana
2. Spellweaver Volute — When a sorcery is cast thanks to Dreadhorde Arcanist, Spellweaver Volute copies a spell
3. Riku of Two Reflections — When an instant is cast thanks to Dreadhorde Arcanist, Riku of Two Reflections copies a spell
4. Sword of Wealth and Power — When an instant is cast thanks to Dreadhorde Arcanist, Sword of Wealth and Power copies a spell
5. Lilah, Undefeated Slickshot — When an instant is cast thanks to Dreadhorde Arcanist, Lilah, Undefeated Slickshot gets +1/+1
6. Extus, Oriq Overlord // Awaken the Blood Avatar — When an instant is cast thanks to Dreadhorde Arcanist, Extus, Oriq Overlord // Awaken the Blood Avatar brings a card back
7. Metallurgic Summonings — When an instant is cast thanks to Dreadhorde Arcanist, Metallurgic Summonings makes a token
8. Storm-Kiln Artist — When an instant is cast thanks to Dreadhorde Arcanist, Storm-Kiln Artist makes a token
9. Niblis of Frost — When an instant is cast thanks to Dreadhorde Arcanist, Niblis of Frost taps a creature an opponent controls
10. Mica, Reader of Ruins — When an instant is cast thanks to Dreadhorde Arcanist, Mica, Reader of Ruins sacrifices an artifact

424 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 (Dreadhorde Arcanist is one).

1. Shaun, Father of Synths — When Dreadhorde Arcanist attacks, Shaun, Father of Synths makes a token

128 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 (Dreadhorde Arcanist is one).

1. God-Eternal Oketra — When Dreadhorde Arcanist is cast, God-Eternal Oketra makes a token

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