Appa, the Vigilant

an Ally it applies speed increase to — 77 cards in Appa's colors can cause this.

1. Sokka's Charge — Sokka's Charge gives Appa, the Vigilant haste

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

an Ally enters the battlefield — 88 cards in Appa's colors can cause this.

1. South Pole Voyager — When Appa, the Vigilant enters, South Pole Voyager gains you 1 life
2. Ondu Cleric — When Appa, the Vigilant enters, Ondu Cleric gains you life
3. Kazandu Blademaster — When Appa, the Vigilant enters, Kazandu Blademaster puts a +1/+1 counter on itself
4. Talus Paladin — When Appa, the Vigilant enters, Talus Paladin grants lifelink
5. Hada Freeblade — When Appa, the Vigilant enters, Hada Freeblade puts a +1/+1 counter on itself
6. Avatar Enthusiasts — When Appa, the Vigilant enters, Avatar Enthusiasts puts a +1/+1 counter on itself
7. Kabira Evangel — When Appa, the Vigilant enters, Kabira Evangel grants protection
8. Makindi Shieldmate — When Appa, the Vigilant enters, Makindi Shieldmate puts a +1/+1 counter on itself
9. Makindi Patrol — When Appa, the Vigilant enters, Makindi Patrol grants vigilance
10. Hero of Goma Fada — When Appa, the Vigilant enters, Hero of Goma Fada grants indestructible
11. Momo, Friendly Flier — When Momo, Friendly Flier enters, Appa, the Vigilant gives +1/+1
12. Captain's Claws — When an Ally enters thanks to Captain's Claws, Appa, the Vigilant gives +1/+1
13. Aang, Airbending Master — When an Ally enters thanks to Aang, Airbending Master, Appa, the Vigilant gives +1/+1
14. Stone Haven Outfitter — When Stone Haven Outfitter enters, Appa, the Vigilant gives +1/+1
15. Serene Steward — When Serene Steward enters, Appa, the Vigilant gives +1/+1
16. Inspired Insurgent — When Inspired Insurgent enters, Appa, the Vigilant gives +1/+1
17. Retreat to Emeria — When an Ally enters thanks to Retreat to Emeria, Appa, the Vigilant gives +1/+1
18. Earth Kingdom Protectors — When Earth Kingdom Protectors enters, Appa, the Vigilant gives +1/+1
19. Path to Redemption — When an Ally enters thanks to Path to Redemption, Appa, the Vigilant gives +1/+1
20. Appa, Steadfast Guardian — When an Ally enters thanks to Appa, Steadfast Guardian, Appa, the Vigilant gives +1/+1

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

a creature attacks — 3,562 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant attacks:

1. Adaptive Omnitool — searches a library
2. Staff of Titania — makes a token
3. Glory Bearers — gives +0/+1
4. Ancestor Dragon — gains you life
5. Patron of the Kitsune — gains you 1 life
6. Inquisitorial Rosette — makes a token
7. Saw — sacrifices a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Super-Soldier Serum — triggers
10. Throwing Knife — sacrifices itself

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

anything attacks — 3,562 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Surgical Suite // Hospital Room — puts a counter on a creature
3. Apothecary White — makes a token
4. Adeline, Resplendent Cathar — makes a token
5. Dalkovan Encampment — makes 2 tokens
6. Salvation Colossus — gives +2/+2
7. Lionheart Glimmer — gives +1/+1
8. Urdnan, Dromoka Warrior — grants double strike and first strike
9. Guide of Souls — triggers
10. Warren Warleader — triggers

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

a creature blocks — 3,562 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant blocks:

1. Barrow-Blade — strips abilities
2. Noble Stand — gains you 2 life
3. Battle Cry — gives +0/+1
4. Dead-Iron Sledge — kills a creature

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

a nontoken creature attacks — 3,562 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant attacks:

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

a creature deals combat damage — 3,562 cards in Appa's colors can cause this (Appa is one).

1. Antagonist Incorporator — When Appa, the Vigilant deals combat damage, Antagonist Incorporator makes a token

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

a creature is cast — 3,572 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant is cast:

1. God-Eternal Oketra — makes a token
2. Oketra's Monument — makes a token
3. Quest for the Holy Relic — puts a quest counter on itself
4. Bontu's Monument — makes each opponent lose 1 life
5. Vanquisher's Banner — draws you 1 card
6. Oltec Matterweaver — triggers
7. Pure Reflection — kills a Reflection
8. Flickering Hound — flickers a creature you control
9. Hazoret's Monument — draws and discards
10. Kefnet's Monument — triggers

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

a nontoken creature enters the battlefield — 3,697 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant enters:

1. Angelic Sell-Sword — makes a token
2. Spirit Bonds — makes a token
3. Metastatic Evangel — proliferates
4. Minion Reflector — makes a token
5. Blessed Sanctuary — makes a token
6. Radiant Solar — triggers
7. Anafenza, Kin-Tree Spirit — puts a counter on a permanent

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

a creature enters the battlefield — 4,091 cards in Appa's colors can cause this (Appa is one).

When Appa, the Vigilant enters:

1. Lunarch Veteran // Luminous Phantom — gains you 1 life
2. Daxos, Blessed by the Sun — gains you 1 life
3. Loran, Disciple of History — brings a card back
4. Blasting Station — untaps itself
5. Aetherstorm Roc — puts a counter on a permanent you control

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

anything enters the battlefield — 6,738 cards in Appa's colors 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

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