Lifeline

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

When Lifeline 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.

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

When Lifeline 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 (Lifeline is one).

When Lifeline 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 (Lifeline is one).

When Lifeline 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.

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

1. Windrider Wizard — Windrider Wizard puts cards into the graveyard that Lifeline can bring back
2. Master of Winds — Master of Winds puts cards into the graveyard that Lifeline can bring back
3. Nature's Wrath — When Nature's Wrath is in the graveyard, Lifeline can bring it back
4. Samwise Gamgee — Samwise Gamgee puts cards into the graveyard that Lifeline can bring back
5. Liliana the Repentant — Liliana the Repentant puts cards into the graveyard that Lifeline can bring back
6. Pious Evangel // Wayward Disciple — Pious Evangel // Wayward Disciple puts cards into the graveyard that Lifeline can bring back
7. Rankle and Torbran — Rankle and Torbran puts cards into the graveyard that Lifeline can bring back
8. Shriveling Rot — Shriveling Rot puts cards into the graveyard that Lifeline can bring back
9. Caesar, Legion's Emperor — Caesar, Legion's Emperor puts cards into the graveyard that Lifeline can bring back
10. Ayara, First of Locthwain — Ayara, First of Locthwain puts cards into the graveyard that Lifeline can bring back

7,579 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 (Lifeline is one).

1. HYDRA Assault Robot — When Lifeline enters, HYDRA Assault Robot deals 1 damage
2. Breya, Etherium Shaper — When Breya, Etherium Shaper enters thanks to Lifeline, it makes 2 tokens
3. Pia and Kiran Nalaar — When Pia and Kiran Nalaar enters thanks to Lifeline, it makes 2 tokens
4. Pia Nalaar — When Pia Nalaar enters thanks to Lifeline, it makes a token
5. Tetzin, Gnome Champion // The Golden-Gear Colossus — When Tetzin, Gnome Champion // The Golden-Gear Colossus enters thanks to Lifeline, it triggers
6. Sokka, Bold Boomeranger — When Sokka, Bold Boomeranger enters thanks to Lifeline, it draws and discards
7. Era of Innovation — When Lifeline enters, Era of Innovation puts a counter on a permanent you control
8. Daretti, Rocketeer Engineer — When Daretti, Rocketeer Engineer enters thanks to Lifeline, it sacrifices an artifact
9. Metalhead — When Metalhead enters thanks to Lifeline, it triggers
10. General Traag, Heart of Stone — When General Traag, Heart of Stone enters thanks to Lifeline, it sacrifices an artifact

30 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 (Lifeline is one).

1. Saheeli, Radiant Creator — When Lifeline 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.