Helvault

a nontoken creature is exiled — 995 cards in the game can cause this (Helvault is one).

1. The War Games — When a creature is exiled thanks to Helvault, The War Games exiles a Warrior

a creature is exiled — 1,003 cards in the game can cause this (Helvault is one).

When a creature is exiled thanks to Helvault:

1. Ashnod's Intervention — brings a card back
2. Syr Vondam, Sunstar Exemplar — puts a +1/+1 counter on itself
3. Kaya, Spirits' Justice — copies a permanent
4. Soulherder — puts a +1/+1 counter on itself
5. Kaya's Ghostform — blinks a permanent

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

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

1. The War Doctor — When a creature is exiled thanks to Helvault, The War Doctor puts a time counter on itself

an artifact is cast — 3,683 cards in the game can cause this (Helvault is one).

When Helvault is cast:

1. Mendicant Core, Guidelight — copies a spell
2. Sai, Master Thopterist — makes a token
3. Ravenous Robots — makes a token
4. Pinnacle Emissary — makes a token
5. Mirrodin Besieged — makes a token
6. Poetic Ingenuity — makes a token
7. Digsite Engineer — makes a token
8. Myrsmith — makes a token
9. Riddlesmith — draws you 1 card
10. Dr. Madison Li — puts a counter on a permanent you control

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

a nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Helvault is one).

When Helvault enters:

1. Ultron, Artificial Malevolence — makes a token
2. The Prydwen, Steel Flagship — makes a token
3. Conquest Mission — puts a quest counter on itself
4. Surge Conductor — proliferates
5. Replication Specialist — makes a token
6. Weapons Manufacturing — makes a token
7. Mirrorworks — makes a token

a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (Helvault is one).

When a creature leaves the battlefield thanks to Helvault:

1. Tokka & Rahzar, Unsupervised — puts a +1/+1 counter on itself
2. Splinter, the Mentor — makes a token
3. Rat King, Pale Piper — makes a token
4. Dual Nature — exiles a creature

a creature leaves the battlefield — 4,238 cards in the game can cause this (Helvault is one).

1. Lunarch Veteran // Luminous Phantom — When a creature leaves the battlefield thanks to Helvault, Lunarch Veteran // Luminous Phantom gains you 1 life
2. Extractor Demon — When a creature leaves the battlefield thanks to Helvault, Extractor Demon mills a card
3. Aang, Airbending Master — When a creature leaves the battlefield thanks to Helvault, Aang, Airbending Master puts a counter on a permanent
4. Dour Port-Mage — When a creature leaves the battlefield thanks to Helvault, Dour Port-Mage draws you 1 card
5. Vela the Night-Clad — When a creature leaves the battlefield thanks to Helvault, Vela the Night-Clad makes each opponent lose 1 life
6. Taeko, the Patient Avalanche — When a creature leaves the battlefield thanks to Helvault, Taeko, the Patient Avalanche scries
7. Phantasmal Mount — When Phantasmal Mount leaves the battlefield thanks to Helvault, it triggers
8. Funeral March — When a creature leaves the battlefield thanks to Helvault, Funeral March makes a player sacrifice a creature
9. Sally Sparrow — When a creature leaves the battlefield thanks to Helvault, Sally Sparrow triggers
10. Aang, at the Crossroads // Aang, Destined Savior — When a creature leaves the battlefield thanks to Helvault, Aang, at the Crossroads // Aang, Destined Savior triggers

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

an artifact enters the battlefield — 4,643 cards in the game can cause this (Helvault is one).

When Helvault enters:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life
6. Mechan Assembler — makes a token
7. Glassdust Hulk — gets +1/+1
8. Rook Turret — draws you 1 card
9. Hedron Detonator — deals 1 damage
10. Pactdoll Terror — makes each opponent lose 1 life

55 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 (Helvault is one).

1. T'Challa, the Black Panther — When T'Challa, the Black Panther enters thanks to Helvault, it makes a token
2. Zenos yae Galvus // Shinryu, Transcendent Rival — When Zenos yae Galvus // Shinryu, Transcendent Rival enters thanks to Helvault, it shrinks a creature by -2/-2
3. HYDRA Assault Robot — When Helvault enters, HYDRA Assault Robot deals 1 damage
4. Ertha Jo, Frontier Mentor — When Ertha Jo, Frontier Mentor enters thanks to Helvault, it makes a token
5. Breya, Etherium Shaper — When Breya, Etherium Shaper enters thanks to Helvault, it makes 2 tokens
6. Pia and Kiran Nalaar — When Pia and Kiran Nalaar enters thanks to Helvault, it makes 2 tokens
7. Tetzin, Gnome Champion // The Golden-Gear Colossus — When Tetzin, Gnome Champion // The Golden-Gear Colossus enters thanks to Helvault, it triggers
8. Sokka, Bold Boomeranger — When Sokka, Bold Boomeranger enters thanks to Helvault, it draws and discards
9. Era of Innovation — When Helvault enters, Era of Innovation puts a counter on a permanent you control
10. Daretti, Rocketeer Engineer — When Daretti, Rocketeer Engineer enters thanks to Helvault, it sacrifices an artifact

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

anything is cast — 31,128 cards in the game can cause this (Helvault is one).

1. Saheeli, Radiant Creator — When Helvault is cast, Saheeli, Radiant Creator puts a counter on a permanent you control

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