Roon of the Hidden Realm

a creature is exiled — 1,003 cards in the game can cause this (Roon of the Hidden Realm is one).

When a creature is exiled thanks to Roon of the Hidden Realm:

1. Ashnod's Intervention — brings a card back
2. Soulherder — puts a +1/+1 counter on itself

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

a Soldier creature enters the battlefield — 1,279 cards in the game can cause this (Roon of the Hidden Realm is one).

1. Veteran's Armaments — When Roon of the Hidden Realm enters, Veteran's Armaments triggers

anything is exiled — 2,497 cards in the game can cause this (Roon of the Hidden Realm is one).

1. The War Doctor — When a creature is exiled thanks to Roon of the Hidden Realm, The War Doctor puts a time counter on itself

1 other card cares 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 (Roon of the Hidden Realm is one).

1. Dual Nature — When a creature leaves the battlefield thanks to Roon of the Hidden Realm, Dual Nature exiles a creature

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

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

When a creature leaves the battlefield thanks to Roon of the Hidden Realm:

1. Extractor Demon — mills a card
2. Valor of the Worthy — makes a token
3. Traveling Plague — returns itself from the graveyard
4. Funeral March — makes a player sacrifice a creature

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

anything attacks — 17,934 cards in the game can cause this (Roon of the Hidden Realm is one).

When Roon of the Hidden Realm attacks:

1. Shaun, Father of Synths — makes a token
2. Far Fortune, End Boss — deals 1 damage
3. Temmet, Naktamun's Will — draws you 1 card
4. Grim Javelineer — gives +1/+0
5. Invisible Woman — triggers
6. Caesar, Legion's Emperor — sacrifices a creature
7. Guide of Souls — triggers
8. Campsite Cuisine — sacrifices a Food
9. Gossip's Talent — triggers
10. Banon, the Returners' Leader — draws and discards

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

a creature attacks — 17,934 cards in the game can cause this (Roon of the Hidden Realm is one).

When Roon of the Hidden Realm attacks:

1. Adaptive Omnitool — searches a library
2. Anthem of Rakdos — gives +2/+0
3. Kindred Discovery — draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — puts counters on a permanent
5. Chorale of the Void — brings a card back
6. Saw — sacrifices a creature
7. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Path of Mettle // Metzali, Tower of Triumph — triggers
10. Total War — kills a creature

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

a creature blocks — 17,934 cards in the game can cause this (Roon of the Hidden Realm is one).

When Roon of the Hidden Realm blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Carnage Gladiator — makes a player lose 1 life
3. Tide of War — sacrifices a creature
4. Dead-Iron Sledge — kills a creature
5. Dwindle — kills a creature
6. Shield of the Righteous — triggers

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

a nontoken creature attacks — 17,934 cards in the game can cause this (Roon of the Hidden Realm is one).

When Roon of the Hidden Realm attacks:

1. Mardu Ascendancy — makes a token
2. Basri Ket — makes a token
3. Militia's Pride — makes a token

a creature is cast — 18,010 cards in the game can cause this (Roon of the Hidden Realm is one).

When Roon of the Hidden Realm is cast:

1. God-Eternal Oketra — makes a token
2. Champions of the Perfect — draws you 1 card

89 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 (Roon of the Hidden Realm is one).

1. Lunarch Veteran // Luminous Phantom — When a creature enters thanks to Roon of the Hidden Realm, Lunarch Veteran // Luminous Phantom gains you 1 life
2. Fire Nation Salvagers — When Fire Nation Salvagers enters thanks to Roon of the Hidden Realm, it puts a counter on a creature or Vehicle
3. Goblin Goliath — When Goblin Goliath enters thanks to Roon of the Hidden Realm, it makes a token
4. Slash, Reptile Rampager — When a creature enters thanks to Roon of the Hidden Realm, Slash, Reptile Rampager deals 2 damage
5. Gimli of the Glittering Caves — When Roon of the Hidden Realm enters, Gimli of the Glittering Caves puts counters on a permanent
6. Ray Fillet, Wave Warrior — When Roon of the Hidden Realm enters, Ray Fillet, Wave Warrior puts a counter on itself
7. Legolas Greenleaf — When Roon of the Hidden Realm enters, Legolas Greenleaf puts a counter on a permanent
8. The Neutrinos — When a creature enters thanks to Roon of the Hidden Realm, The Neutrinos gets +1/+0
9. Aetherstorm Roc — When a creature enters thanks to Roon of the Hidden Realm, Aetherstorm Roc puts a counter on a permanent you control
10. Raphael, Most Attitude — When a creature enters thanks to Roon of the Hidden Realm, Raphael, Most Attitude exiles a card from your library

296 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 (Roon of the Hidden Realm is one).

1. Zenos yae Galvus // Shinryu, Transcendent Rival — When Zenos yae Galvus // Shinryu, Transcendent Rival enters thanks to Roon of the Hidden Realm, it shrinks a creature by -2/-2
2. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a creature enters thanks to Roon of the Hidden Realm, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
3. Ivora, Insatiable Heir — When Ivora, Insatiable Heir enters thanks to Roon of the Hidden Realm, it makes a token
4. Dogmeat, Ever Loyal — When Dogmeat, Ever Loyal enters thanks to Roon of the Hidden Realm, it mills a card
5. SP//dr, Piloted by Peni — When SP//dr, Piloted by Peni enters thanks to Roon of the Hidden Realm, it puts a counter on a creature
6. Mu Yanling, Wind Rider — When Mu Yanling, Wind Rider enters thanks to Roon of the Hidden Realm, it makes a token
7. The Rani — When The Rani enters thanks to Roon of the Hidden Realm, it makes a token
8. Aang, Airbending Master — When Aang, Airbending Master enters thanks to Roon of the Hidden Realm, it triggers
9. Aang, at the Crossroads // Aang, Destined Savior — When Aang, at the Crossroads // Aang, Destined Savior enters thanks to Roon of the Hidden Realm, it puts a creature onto the battlefield
10. J. Jonah Jameson — When J. Jonah Jameson enters thanks to Roon of the Hidden Realm, it triggers

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