Echo Chamber

anything leaves the battlefield — 1 card in the game can cause this (Echo Chamber is one).

1. Nadier, Agent of the Duskenel — When a creature leaves the battlefield thanks to Echo Chamber, Nadier, Agent of the Duskenel puts a +1/+1 counter on itself
2. Gollum, Patient Plotter — Echo Chamber's copy of Gollum, Patient Plotter is exiled at end of turn, and the copy's own leave ability triggers

a creature token leaves the battlefield — 117 cards in the game can cause this (Echo Chamber is one).

When a creature leaves the battlefield thanks to Echo Chamber:

1. Twilight Drover — puts a +1/+1 counter on itself
2. Zurgo Stormrender — makes each opponent lose 1 life

a token leaves the battlefield — 182 cards in the game can cause this (Echo Chamber is one).

When a creature leaves the battlefield thanks to Echo Chamber:

1. Boomer Scrapper — puts a +1/+1 counter on itself
2. Nadier's Nightblade — makes each opponent lose 1 life

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

a creature token enters the battlefield — 2,799 cards in the game can cause this (Echo Chamber is one).

When a creature enters thanks to Echo Chamber:

1. Securitron Squadron — puts a counter on a permanent
2. Anointer Priest — gains you 1 life
3. Nesting Dovehawk — puts a +1/+1 counter on itself

a creature token is created — 2,799 cards in the game can cause this (Echo Chamber is one).

1. Staff of the Storyteller — When Echo Chamber makes a creature token, Staff of the Storyteller puts a story counter on itself

3 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 (Echo Chamber is one).

When Echo Chamber 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 token enters the battlefield — 3,710 cards in the game can cause this (Echo Chamber is one).

When a creature enters thanks to Echo Chamber:

1. Baron Bertram Graywater — makes a token
2. Marneus Calgar — draws you 1 card
3. Belladonna Took — gains you 1 life
4. Kambal, Profiteering Mayor — makes each opponent lose 1 life
5. Lucy MacLean, Positively Armed — makes a token
6. Mister Fantastic, Reed Richards — draws you 1 card
7. Cloakwood Swarmkeeper — puts a +1/+1 counter on itself
8. Woodland Champion — puts that many +1/+1 counters on itself
9. Leonardo, the Balance — puts a counter on a creature
10. Spiritcall Enthusiast // Scrollboost — becomes prepared

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

a token is created — 3,711 cards in the game can cause this (Echo Chamber is one).

When Echo Chamber makes a creature token:

1. Akim, the Soaring Wind — makes a token
2. Idol of Oblivion — draws you 1 card
3. Rosie Cotton of South Lane — puts a counter on a permanent
4. Mirkwood Bats — makes each opponent lose 1 life

17 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 (Echo Chamber is one).

When Echo Chamber 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 creature leaves the battlefield — 4,238 cards in the game can cause this (Echo Chamber is one).

1. Lunarch Veteran // Luminous Phantom — When a creature leaves the battlefield thanks to Echo Chamber, Lunarch Veteran // Luminous Phantom gains you 1 life
2. Extractor Demon — When a creature leaves the battlefield thanks to Echo Chamber, Extractor Demon mills a card
3. Aang, Airbending Master — When a creature leaves the battlefield thanks to Echo Chamber, Aang, Airbending Master puts a counter on a permanent
4. Dour Port-Mage — When a creature leaves the battlefield thanks to Echo Chamber, Dour Port-Mage draws you 1 card
5. Vela the Night-Clad — When a creature leaves the battlefield thanks to Echo Chamber, Vela the Night-Clad makes each opponent lose 1 life
6. Taeko, the Patient Avalanche — When a creature leaves the battlefield thanks to Echo Chamber, Taeko, the Patient Avalanche scries
7. Phantasmal Mount — Echo Chamber's copy of Phantasmal Mount is exiled at end of turn, and the copy's own leave ability triggers
8. Funeral March — When a creature leaves the battlefield thanks to Echo Chamber, Funeral March makes a player sacrifice a creature
9. Sally Sparrow — When a creature leaves the battlefield thanks to Echo Chamber, Sally Sparrow triggers
10. Aang, at the Crossroads // Aang, Destined Savior — When a creature leaves the battlefield thanks to Echo Chamber, 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 (Echo Chamber is one).

When Echo Chamber 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

60 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 (Echo Chamber is one).

1. Zenos yae Galvus // Shinryu, Transcendent Rival — When Zenos yae Galvus // Shinryu, Transcendent Rival enters because Echo Chamber copies it, its ability triggers again
2. Tetzin, Gnome Champion // The Golden-Gear Colossus — When Tetzin, Gnome Champion // The Golden-Gear Colossus enters because Echo Chamber copies it, its ability triggers again

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