Sonic the Hedgehog

a Warrior attacks — 1,319 cards in the game can cause this (Sonic the Hedgehog is one).

1. Najeela, the Blade-Blossom — When Sonic the Hedgehog attacks, Najeela, the Blade-Blossom makes a token

a Warrior deals combat damage — 1,319 cards in the game can cause this (Sonic the Hedgehog is one).

1. Raiders' Spoils — When Sonic the Hedgehog deals combat damage, Raiders' Spoils makes you lose life

a Warrior it applies speed increase to — 1,331 cards in the game can cause this.

1. Kor Blademaster — Kor Blademaster gives Sonic the Hedgehog haste

1,330 other cards cause it too. These are the ones with the most connections.

a Warrior creature enters the battlefield — 1,401 cards in the game can cause this (Sonic the Hedgehog is one).

1. Obsidian Battle-Axe — When Sonic the Hedgehog enters, Obsidian Battle-Axe triggers

a Warrior enters the battlefield — 1,403 cards in the game can cause this (Sonic the Hedgehog is one).

When Sonic the Hedgehog enters:

1. Mardu Woe-Reaper — hits a graveyard
2. Thrasher Brute — makes each opponent lose 1 life
3. Decorated Champion — puts a +1/+1 counter on itself

a Warrior creature it grants types to — 1,404 cards in the game can cause this.

1. Warrior's Sword — Warrior's Sword gives Sonic the Hedgehog an extra creature type

1,403 other cards cause it too. These are the ones with the most connections.

a creature gets a counter — 2,691 cards in the game can cause this (Sonic the Hedgehog is one).

When a creature gets a counter thanks to Sonic the Hedgehog:

1. Hollowmurk Siege — draws you 1 card
2. Ant-Man, Colony Commander — makes a token
3. Earth Kingdom General — gains you that much life
4. Casey Jones, Back Alley Brute — deals that much damage
5. Shalai and Hallar — deals that much damage
6. Danny Pink — draws you 1 card
7. Enduring Scalelord — puts a +1/+1 counter on itself
8. Mikey & Leo, Chaos & Order — draws you 1 card
9. Knight of Wundagore — puts a +1/+1 counter on itself
10. Omarthis, Ghostfire Initiate — puts a counter on a permanent

33 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 (Sonic the Hedgehog is one).

When a Treasure enters thanks to Sonic the Hedgehog:

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 (Sonic the Hedgehog is one).

When Sonic the Hedgehog makes a Treasure 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 gets a counter — 4,415 cards in the game can cause this (Sonic the Hedgehog is one).

1. All Will Be One — When a creature gets a counter thanks to Sonic the Hedgehog, All Will Be One deals that much damage

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

an artifact it grants types to — 4,531 cards in the game can cause this.

1. Silverskin Armor — Silverskin Armor gives Sonic the Hedgehog an extra creature type

4,530 other cards cause it too. These are the ones with the most connections.

an artifact enters the battlefield — 4,643 cards in the game can cause this (Sonic the Hedgehog is one).

When a Treasure enters thanks to Sonic the Hedgehog:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life
6. Mechan Assembler — makes a token
7. Glassdust Hulk — gets +1/+1
8. Rook Turret — draws you 1 card
9. Hedron Detonator — deals 1 damage
10. Pactdoll Terror — makes each opponent lose 1 life

56 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 (Sonic the Hedgehog is one).

When Sonic the Hedgehog attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers
6. Campsite Cuisine — sacrifices a Food

126 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 (Sonic the Hedgehog is one).

When Sonic the Hedgehog attacks:

1. Adaptive Omnitool — searches a library
2. Saw — sacrifices a creature

194 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 (Sonic the Hedgehog is one).

When Sonic the Hedgehog enters:

1. Scurry Oak — puts a counter on itself
2. Fathom Mage — puts a counter on itself
3. Lonis, Genetics Expert — puts a counter on itself
4. Slash, Reptile Rampager — deals 2 damage
5. Gimli of the Glittering Caves — puts counters on a permanent
6. Ray Fillet, Wave Warrior — puts a counter on itself
7. Legolas Greenleaf — puts a counter on a permanent
8. The Neutrinos — gets +1/+0
9. Aetherstorm Roc — puts a counter on a permanent you control
10. Raphael, Most Attitude — exiles a card from your library

329 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 (Sonic the Hedgehog is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Sonic the Hedgehog enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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