The Legend of Roku // Avatar Roku

a Dragon enters the battlefield — 524 cards in the game can cause this (The Legend of Roku is one).

When a Dragon enters thanks to The Legend of Roku // Avatar Roku:

1. Dragon Tempest — deals damage
2. Bloomvine Regent // Claim Territory — gains you 3 life
3. Sarkhan, Dragon Ascendant — puts a +1/+1 counter on itself
4. Ganax, Astral Hunter — makes a token
5. Scourge of Valkas — deals damage
6. Bladewing's Thrall — returns itself from the graveyard
7. Sarkhan, Soul Aflame — copies a permanent
8. Teeming Dragonstorm — triggers
9. Corroding Dragonstorm — triggers
10. Roiling Dragonstorm — triggers

4 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 (The Legend of Roku is one).

1. The War Doctor — When a permanent is exiled thanks to The Legend of Roku // Avatar Roku, The War Doctor puts a time counter on itself

provide a creature to sacrifice — 2,720 cards in the game can cause this.

1. Industrial Advancement — The Legend of Roku // Avatar Roku makes fodder for Industrial Advancement
2. Divergent Transformations — The Legend of Roku // Avatar Roku makes fodder for Divergent Transformations
3. Transmogrify — The Legend of Roku // Avatar Roku makes fodder for Transmogrify

2,717 other cards cause 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 (The Legend of Roku is one).

When a Dragon enters thanks to The Legend of Roku // Avatar Roku:

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 (The Legend of Roku is one).

1. Staff of the Storyteller — When The Legend of Roku // Avatar Roku makes a Dragon 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 enchantment is cast — 3,673 cards in the game can cause this (The Legend of Roku is one).

When The Legend of Roku // Avatar Roku is cast:

1. Hallowed Haunting — makes a token
2. Daxos the Returned — puts a counter on a permanent
3. Tatsunari, Toad Rider — makes a token
4. Sythis, Harvest's Hand — gains you 1 life
5. Sigil of the Empty Throne — makes a token
6. Dawnhart Geist — gains you 2 life
7. Herald of the Pantheon — gains you 1 life
8. Kami of Transience — puts a +1/+1 counter on itself
9. Argothian Enchantress — draws you 1 card
10. Mesa Enchantress — draws you 1 card

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

a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (The Legend of Roku is one).

1. Historian's Boon — When The Legend of Roku // Avatar Roku enters, Historian's Boon makes a token

a token enters the battlefield — 3,710 cards in the game can cause this (The Legend of Roku is one).

When a Dragon enters thanks to The Legend of Roku // Avatar Roku:

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 (The Legend of Roku is one).

When The Legend of Roku // Avatar Roku makes a Dragon 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.

an enchantment enters the battlefield — 3,743 cards in the game can cause this (The Legend of Roku is one).

When The Legend of Roku // Avatar Roku enters:

1. Calix, Guided by Fate — puts a counter on a creature
2. Elvish Archivist — draws you 1 card
3. Victor, Valgavoth's Seneschal — surveils
4. Strength from the Fallen — gives +X/+X, where X is the number of creature cards in your graveyard
5. Doomwake Giant — shrinks a creature by -1/-1
6. Cacophony Unleashed — turns something into a creature
7. Ghostly Dancers — makes a token
8. Thassa's Devourer — mills a card
9. Killian, Decisive Mentor — taps a creature
10. Thoughtrender Lamia — makes an opponent discard a card

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

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

When The Legend of Roku // Avatar Roku leaves the battlefield:

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 (The Legend of Roku is one).

When The Legend of Roku // Avatar Roku leaves the battlefield:

1. Lunarch Veteran // Luminous Phantom — gains you 1 life
2. Extractor Demon — mills a card
3. Aang, Airbending Master — puts a counter on a permanent
4. Funeral March — makes a player sacrifice a creature
5. Sally Sparrow — triggers

24 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 Legend of Roku is one).

1. Airbender Ascension — When a Dragon enters thanks to The Legend of Roku // Avatar Roku, Airbender Ascension puts a quest counter on itself

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