The Cauldron of Eternity

a creature leaves a graveyard — 1,302 cards in the game can cause this (The Cauldron of Eternity is one).

When a creature leaves a graveyard thanks to The Cauldron of Eternity:

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 leaves a graveyard — 2,503 cards in the game can cause this (The Cauldron of Eternity is one).

When a creature leaves a graveyard thanks to The Cauldron of Eternity:

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.

put a creature into a graveyard — 2,769 cards in the game can cause this.

1. Shriveling Rot — Shriveling Rot puts cards into the graveyard, and The Cauldron of Eternity gets bigger
2. Ayara, First of Locthwain — Ayara, First of Locthwain puts cards into the graveyard, and The Cauldron of Eternity gets bigger
3. Foot Chopper — Foot Chopper puts cards into the graveyard, and The Cauldron of Eternity gets bigger
4. Blasting Station — Blasting Station puts cards into the graveyard, and The Cauldron of Eternity gets bigger
5. Tainted Aether — Tainted Aether puts cards into the graveyard, and The Cauldron of Eternity gets bigger
6. Lethal Vapors — Lethal Vapors puts cards into the graveyard, and The Cauldron of Eternity gets bigger
7. Grave Peril — Grave Peril puts cards into the graveyard, and The Cauldron of Eternity gets bigger
8. Spreading Plague — Spreading Plague puts cards into the graveyard, and The Cauldron of Eternity gets bigger
9. Saw — Saw puts cards into the graveyard, and The Cauldron of Eternity gets bigger
10. Hot Soup — Hot Soup puts cards into the graveyard, and The Cauldron of Eternity gets bigger

2,759 other cards cause it too. These are the ones with the most connections.

a creature dies — 2,830 cards in the game can cause this.

1. Fire Navy Trebuchet — When a Construct dies thanks to Fire Navy Trebuchet, The Cauldron of Eternity brings a card back
2. Salt Road Skirmish — When a Warrior dies thanks to Salt Road Skirmish, The Cauldron of Eternity brings a card back
3. Ghoulish Procession — When a Zombie dies thanks to Ghoulish Procession, The Cauldron of Eternity brings a card back
4. Curse of the Restless Dead — When a Zombie dies thanks to Curse of the Restless Dead, The Cauldron of Eternity brings a card back
5. Mordor Trebuchet — When a Construct dies thanks to Mordor Trebuchet, The Cauldron of Eternity brings a card back
6. Broken Visage — When a Spirit dies thanks to Broken Visage, The Cauldron of Eternity brings a card back
7. No Way Out — When a Zombie dies thanks to No Way Out, The Cauldron of Eternity brings a card back
8. Jadar, Ghoulcaller of Nephalia — When a Zombie dies thanks to Jadar, Ghoulcaller of Nephalia, The Cauldron of Eternity brings a card back
9. Tainted Adversary — When a Zombie dies thanks to Tainted Adversary, The Cauldron of Eternity brings a card back
10. Diregraf Horde — When a Zombie dies thanks to Diregraf Horde, The Cauldron of Eternity brings a card back

2,820 other cards cause it too. These are the ones with the most connections.

life is lost — 3,160 cards in the game can cause this (The Cauldron of Eternity is one).

When The Cauldron of Eternity makes a player lose life:

1. The Master of Lake-town — mills a card
2. Intermediate Chirography — puts a counter on a creature
3. Vilis, Broker of Blood — draws you that many cards
4. Vengeful Warchief — puts a +1/+1 counter on itself
5. Wax-Wane Witness — gets +1/+0
6. Oath of Lim-Dûl — sacrifices an enchantment
7. Marina Vendrell's Grimoire — triggers
8. Lich's Mastery — triggers
9. Lich's Tomb — sacrifices a permanent
10. Gonti's Machinations — puts a counter on a permanent you control

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

an artifact is cast — 3,683 cards in the game can cause this (The Cauldron of Eternity is one).

When The Cauldron of Eternity 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 (The Cauldron of Eternity is one).

When The Cauldron of Eternity 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

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

When The Cauldron of Eternity 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

58 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 (The Cauldron of Eternity is one).

1. Embalmed Ascendant — When Embalmed Ascendant enters thanks to The Cauldron of Eternity, it makes a token
2. Gastal Thrillseeker — When Gastal Thrillseeker enters thanks to The Cauldron of Eternity, it deals 1 damage
3. Gastal Raider — When Gastal Raider enters thanks to The Cauldron of Eternity, it makes an opponent discard a card

333 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 (The Cauldron of Eternity is one).

1. Tetzin, Gnome Champion // The Golden-Gear Colossus — When Tetzin, Gnome Champion // The Golden-Gear Colossus enters thanks to The Cauldron of Eternity, it triggers

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