It of the Horrid Swarm

hits creature — 2,298 cards in the game can cause this (It of the Horrid Swarm is one).

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

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

an Eldrazi creature is cast — 226 cards in the game can cause this (It of the Horrid Swarm is one).

When It of the Horrid Swarm is cast:

1. Emrakul's Influence — draws you 2 cards
2. Kozilek's Return — exiles a card from a graveyard

an Eldrazi creature it makes cheaper to cast — 273 cards in the game can cause this.

1. Eye of Ugin — Eye of Ugin reduces what It of the Horrid Swarm costs

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

an Insect attacks — 323 cards in the game can cause this (It of the Horrid Swarm is one).

When It of the Horrid Swarm attacks:

1. Vrestin, Menoptra Leader — puts a counter on a permanent
2. Fumulus, the Infestation — makes each opponent lose 1 life

a creature token enters the battlefield — 2,799 cards in the game can cause this (It of the Horrid Swarm is one).

When an Insect enters thanks to It of the Horrid Swarm:

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 (It of the Horrid Swarm is one).

1. Staff of the Storyteller — When It of the Horrid Swarm makes an Insect 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 (It of the Horrid Swarm is one).

When an Insect enters thanks to It of the Horrid Swarm:

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 (It of the Horrid Swarm is one).

When It of the Horrid Swarm makes an Insect 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 (It of the Horrid Swarm is one).

When It of the Horrid Swarm 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 (It of the Horrid Swarm is one).

When It of the Horrid Swarm 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 (It of the Horrid Swarm is one).

When It of the Horrid Swarm 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 (It of the Horrid Swarm is one).

1. Slash, Reptile Rampager — When an Insect enters thanks to It of the Horrid Swarm, Slash, Reptile Rampager deals 2 damage
2. Ray Fillet, Wave Warrior — When It of the Horrid Swarm enters, Ray Fillet, Wave Warrior puts a counter on itself
3. The Neutrinos — When an Insect enters thanks to It of the Horrid Swarm, The Neutrinos gets +1/+0
4. Wingnut, Bat on the Belfry — When an Insect enters thanks to It of the Horrid Swarm, Wingnut, Bat on the Belfry grants flying, haste and menace
5. Aetherstorm Roc — When an Insect enters thanks to It of the Horrid Swarm, Aetherstorm Roc puts a counter on a permanent you control
6. Raphael, Most Attitude — When an Insect enters thanks to It of the Horrid Swarm, Raphael, Most Attitude exiles a card from your library

334 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 (It of the Horrid Swarm is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When an Insect enters thanks to It of the Horrid Swarm, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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