Appa, the Vigilant

hits creature — 2,298 cards in the game can cause this (Appa is one).

1. Jalira, Master Polymorphist — Jalira, Master Polymorphist can put Appa, the Vigilant onto the battlefield from your library
2. Polymorph — Polymorph can put Appa, the Vigilant onto the battlefield from your library
3. Birthing Ritual — Birthing Ritual can put Appa, the Vigilant onto the battlefield from your library
4. Industrial Advancement — Industrial Advancement can put Appa, the Vigilant onto the battlefield from your library
5. Killer Instinct — Killer Instinct can put Appa, the Vigilant onto the battlefield from your library
6. Arthur, Marigold Knight — Arthur, Marigold Knight can put Appa, the Vigilant onto the battlefield from your library
7. Proteus Staff — Proteus Staff can put Appa, the Vigilant onto the battlefield from your library
8. Synthetic Destiny — Synthetic Destiny can put Appa, the Vigilant onto the battlefield from your library
9. Divergent Transformations — Divergent Transformations can put Appa, the Vigilant onto the battlefield from your library
10. Transmogrify — Transmogrify can put Appa, the Vigilant onto the battlefield from your library

8 other cards care about 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, the Vigilant 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, the Vigilant 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.

1. Turntimber Ranger — When Appa, the Vigilant enters, Turntimber Ranger makes a token
2. Grovetender Druids — When Appa, the Vigilant enters, Grovetender Druids makes a token
3. Halimar Excavator — When Appa, the Vigilant enters, Halimar Excavator mills a card
4. Kalastria Healer — When Appa, the Vigilant enters, Kalastria Healer makes each opponent lose 1 life
5. South Pole Voyager — When Appa, the Vigilant enters, South Pole Voyager gains you 1 life
6. Ondu Cleric — When Appa, the Vigilant enters, Ondu Cleric gains you life
7. Tuktuk Grunts — When Appa, the Vigilant enters, Tuktuk Grunts puts a +1/+1 counter on itself
8. Momo, Friendly Flier — When Momo, Friendly Flier enters, Appa, the Vigilant gives +1/+1
9. Captain's Claws — When an Ally enters thanks to Captain's Claws, Appa, the Vigilant gives +1/+1
10. Aang, Airbending Master — When an Ally enters thanks to Aang, Airbending Master, Appa, the Vigilant gives +1/+1
11. Stone Haven Outfitter — When Stone Haven Outfitter enters, Appa, the Vigilant gives +1/+1
12. Serene Steward — When Serene Steward enters, Appa, the Vigilant gives +1/+1
13. Inspired Insurgent — When Inspired Insurgent enters, Appa, the Vigilant gives +1/+1
14. Retreat to Emeria — When an Ally enters thanks to Retreat to Emeria, Appa, the Vigilant gives +1/+1
15. Earth Kingdom Protectors — When Earth Kingdom Protectors enters, Appa, the Vigilant gives +1/+1
16. Path to Redemption — When an Ally enters thanks to Path to Redemption, Appa, the Vigilant gives +1/+1
17. Appa, Steadfast Guardian — When an Ally enters thanks to Appa, Steadfast Guardian, Appa, the Vigilant gives +1/+1
18. Sokka and Suki — When Appa, the Vigilant enters, Sokka and Suki triggers
19. Tuktuk Scrapper — When Appa, the Vigilant enters, Tuktuk Scrapper kills an artifact an opponent controls
20. Bala Ged Thief — When Appa, the Vigilant enters, Bala Ged Thief triggers

95 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, the Vigilant 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

111 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, the Vigilant 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 (Appa is one).

When Appa, the Vigilant blocks:

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

21 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 (Appa is one).

When Appa, the Vigilant attacks:

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

a creature enters the battlefield — 19,800 cards in the game can cause this (Appa is one).

When Appa, the Vigilant enters:

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

336 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 Appa, the Vigilant enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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