Kaalia of the Vast

a Demon enters the battlefield — 284 cards in the game can cause this (Kaalia of the Vast is one).

When a Demon enters thanks to Kaalia of the Vast:

1. Blood Speaker — returns itself from the graveyard
2. Be'lakor, the Dark Master — deals its power damage

an Angel enters the battlefield — 354 cards in the game can cause this (Kaalia of the Vast is one).

When an Angel enters thanks to Kaalia of the Vast:

1. Bishop of Wings — gains you 4 life
2. Youthful Valkyrie — puts a +1/+1 counter on itself
3. Seraph Sanctuary — gains you 1 life
4. Righteous Valkyrie — gains you that creature's toughness life

a nontoken Dragon enters the battlefield — 484 cards in the game can cause this (Kaalia of the Vast is one).

When a Dragon enters thanks to Kaalia of the Vast:

1. Lathliss, Dragon Queen — makes a token
2. Miirym, Sentinel Wyrm — makes a token

a Dragon enters the battlefield — 524 cards in the game can cause this (Kaalia of the Vast is one).

When a Dragon enters thanks to Kaalia of the Vast:

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.

a Cleric enters the battlefield — 722 cards in the game can cause this (Kaalia of the Vast is one).

1. Cleric of Life's Bond — When Kaalia of the Vast enters, Cleric of Life's Bond gains you 1 life

1 other card cares about it too. These are the ones with the most connections.

a Human enters the battlefield — 4,639 cards in the game can cause this (Kaalia of the Vast is one).

When Kaalia of the Vast enters:

1. General Kudro of Drannith — hits a graveyard
2. Heronblade Elite — puts a +1/+1 counter on itself
3. Kyler, Sigardian Emissary — puts a +1/+1 counter on itself
4. Thalia's Lieutenant — puts a +1/+1 counter on itself
5. Champion of the Parish — puts a +1/+1 counter on itself
6. Captain of the Mists — untaps itself
7. Erkenbrand, Lord of Westfold — gives +1/+0
8. Beregond of the Guard — gives +1/+1
9. Théoden, King of Rohan — grants double strike
10. Lossarnach Captain — taps a creature an opponent controls

2 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 (Kaalia of the Vast is one).

When Kaalia of the Vast attacks:

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

112 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 (Kaalia of the Vast is one).

When Kaalia of the Vast 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

185 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 (Kaalia of the Vast is one).

When Kaalia of the Vast blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Tide of War — sacrifices a creature
3. Dead-Iron Sledge — kills a creature
4. Dwindle — kills a creature

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 (Kaalia of the Vast is one).

1. Slash, Reptile Rampager — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, Slash, Reptile Rampager deals 2 damage
2. Gimli of the Glittering Caves — When Kaalia of the Vast enters, Gimli of the Glittering Caves puts counters on a permanent
3. Ray Fillet, Wave Warrior — When Kaalia of the Vast enters, Ray Fillet, Wave Warrior puts a counter on itself
4. Legolas Greenleaf — When Kaalia of the Vast enters, Legolas Greenleaf puts a counter on a permanent
5. The Neutrinos — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, The Neutrinos gets +1/+0
6. Wingnut, Bat on the Belfry — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, Wingnut, Bat on the Belfry grants flying, haste and menace
7. Aetherstorm Roc — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, Aetherstorm Roc puts a counter on a permanent you control
8. Raphael, Most Attitude — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, Raphael, Most Attitude exiles a card from your library

311 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 (Kaalia of the Vast is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When an Angel, Demon or Dragon enters thanks to Kaalia of the Vast, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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