Appa, Steadfast Guardian

anything is airbent — 13 cards in the game can cause this (Appa is one).

1. Avatar Aang // Aang, Master of Elements — When Appa, Steadfast Guardian airbends, Avatar Aang // Aang, Master of Elements draws you 1 card

cast a spell — 155 cards in the game can cause this.

1. Herald of Amity — When an Aura is cast thanks to Herald of Amity, Appa, Steadfast Guardian makes a token
2. Shell of the Last Kappa — When Shell of the Last Kappa is cast, Appa, Steadfast Guardian makes a token
3. Knowledge Pool — When Knowledge Pool is cast, Appa, Steadfast Guardian makes a token

152 other cards cause it too. These are the ones with the most connections.

an Ally deals combat damage — 265 cards in the game can cause this (Appa is one).

1. Invasion Tactics — When Appa, Steadfast Guardian deals combat damage, Invasion Tactics draws you 1 card

an Ally it applies speed increase to — 273 cards in the game can cause this.

1. Sokka's Charge — Sokka's Charge gives Appa, Steadfast Guardian haste

272 other cards cause it too. These are the ones with the most connections.

an Ally enters the battlefield — 285 cards in the game can cause this (Appa is one).

When an Ally enters thanks to Appa, Steadfast Guardian:

1. Turntimber Ranger — makes a token
2. Grovetender Druids — makes a token
3. Halimar Excavator — mills a card
4. Kalastria Healer — makes each opponent lose 1 life
5. South Pole Voyager — gains you 1 life
6. Ondu Cleric — gains you life
7. Tuktuk Grunts — puts a +1/+1 counter on itself
8. Sokka and Suki — triggers
9. Tuktuk Scrapper — kills an artifact an opponent controls
10. Bala Ged Thief — triggers

35 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 (Appa is one).

When an Ally enters thanks to Appa, Steadfast Guardian:

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 (Appa is one).

1. Staff of the Storyteller — When Appa, Steadfast Guardian makes an Ally 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.

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

When an Ally enters thanks to Appa, Steadfast Guardian:

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 (Appa is one).

When Appa, Steadfast Guardian makes an Ally 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.

anything attacks — 17,934 cards in the game can cause this (Appa is one).

When Appa, Steadfast Guardian 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

122 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 (Appa is one).

When Appa, Steadfast Guardian 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

196 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 (Appa is one).

When Appa, Steadfast Guardian 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

27 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 (Appa is one).

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

370 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 (Appa is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When an Ally enters thanks to Appa, Steadfast Guardian, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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