Swarmyard Massacre

a Rat creature in a graveyard — 2 cards in the game can cause this (Swarmyard Massacre is one).

1. Ashcoat of the Shadow Swarm — Swarmyard Massacre puts cards into the graveyard that Ashcoat of the Shadow Swarm can bring back

a Rat is put into a graveyard from the battlefield — 5 cards in the game can cause this (Swarmyard Massacre is one).

1. Hungry Lynx — When a Rat is put into a graveyard from the battlefield thanks to Swarmyard Massacre, Hungry Lynx puts a counter on a Cat

an Insect is put into a graveyard from the battlefield — 18 cards in the game can cause this (Swarmyard Massacre is one).

When an Insect is put into a graveyard from the battlefield thanks to Swarmyard Massacre:

1. Zask, Skittering Swarmlord — brings a card back
2. Aatchik, Emerald Radian — puts a +1/+1 counter on itself

a Squirrel enters the battlefield — 114 cards in the game can cause this (Swarmyard Massacre is one).

1. Honored Dreyleader — When a Squirrel enters thanks to Swarmyard Massacre, Honored Dreyleader puts a +1/+1 counter on itself

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

an Insect you control — 334 cards in the game can cause this (Swarmyard Massacre is one).

When you cast Swarmyard Massacre, it counts:

1. Bloodline Pretender — and does more
2. Gladewalker Ritualist — and does more
3. Nantuko Calmer — and does more
4. Seedship Broodtender — and does more
5. Barkform Harvester — and does more
6. Nullmage Advocate — and does more
7. Docent of Perfection // Final Iteration — and does more
8. Luminous Broodmoth — and does more
9. Nantuko Tracer — and does more

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

a creature in a graveyard — 2,769 cards in the game can cause this (Swarmyard Massacre is one).

Swarmyard Massacre puts cards into the graveyard that:

1. Chainer, Dementia Master — can bring back
2. Havengul Lich — can bring back
3. Liliana the Repentant — can bring back
4. Paleoloth — can bring back
5. Chainer, Nightmare Adept — can bring back
6. Banon, the Returners' Leader — can bring back
7. Surgical Suite // Hospital Room — can bring back
8. Sword of Light and Shadow — can bring back
9. Necromantic Thirst — can bring back
10. Krile Baldesion — can bring back

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

a nontoken creature dies — 2,769 cards in the game can cause this (Swarmyard Massacre is one).

When an Insect, Rat, Spider or Squirrel dies thanks to Swarmyard Massacre:

1. Zahur, Glory's Past — makes a token
2. Vraska, the Silencer — brings a card back
3. Liesa, Forgotten Archangel — brings a card back
4. Avacyn, Angel of Horror — brings a card back
5. Yedora, Grave Gardener — brings a card back
6. Nim Deathmantle — brings a card back
7. Valkyrie's Call — brings a card back
8. Decaying Soil — brings a card back
9. High-Society Hunter — draws you 1 card
10. Overseer of the Damned — makes a token

60 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 (Swarmyard Massacre is one).

When a Squirrel enters thanks to Swarmyard Massacre:

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 (Swarmyard Massacre is one).

1. Staff of the Storyteller — When Swarmyard Massacre makes a Squirrel 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 creature dies — 2,830 cards in the game can cause this (Swarmyard Massacre is one).

When an Insect, Rat, Spider or Squirrel dies thanks to Swarmyard Massacre:

1. Pious Evangel // Wayward Disciple — makes each opponent lose 1 life
2. Daxos, Blessed by the Sun — gains you 1 life
3. Elas il-Kor, Sadistic Pilgrim — makes each opponent lose 1 life
4. Shriveling Rot — makes a player lose life equal to its toughness
5. Meathook Massacre II — brings a card back
6. Ashnod's Intervention — brings a card back
7. Missy — brings a card back
8. Malakir Rebirth // Malakir Mire — brings a card back
9. Saffi Eriksdotter — sacrifices itself
10. Angelic Renewal — sacrifices itself

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

a sorcery is cast — 3,720 cards in the game can cause this (Swarmyard Massacre is one).

When Swarmyard Massacre is cast:

1. Cyclops Superconductor — gets +1/+1
2. Jeskai Sage — gets +1/+1

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

a creature leaves the battlefield — 4,238 cards in the game can cause this (Swarmyard Massacre is one).

1. Ninja Teen — When an Insect, Rat, Spider or Squirrel leaves the battlefield thanks to Swarmyard Massacre, Ninja Teen makes each opponent lose 1 life

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

a card in a graveyard — 7,589 cards in the game can cause this (Swarmyard Massacre is one).

1. Havi, the All-Father — Swarmyard Massacre fills your graveyard toward the 4 or more cards Havi, the All-Father needs
2. Repentant Vampire — Swarmyard Massacre fills your graveyard toward the 7 or more cards Repentant Vampire needs
3. Treacherous Vampire — Swarmyard Massacre fills your graveyard toward the 7 or more cards Treacherous Vampire needs
4. Athreos, Shroud-Veiled — Swarmyard Massacre puts cards into the graveyard that Athreos, Shroud-Veiled can bring back
5. Glissa's Retriever — Swarmyard Massacre puts cards into the graveyard that Glissa's Retriever can bring back
6. Greenwarden of Murasa — Swarmyard Massacre puts cards into the graveyard that Greenwarden of Murasa can bring back
7. Reborn Hero — Swarmyard Massacre fills your graveyard toward the 7 or more cards Reborn Hero needs
8. Treacherous Werewolf — Swarmyard Massacre fills your graveyard toward the 7 or more cards Treacherous Werewolf needs

436 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 (Swarmyard Massacre is one).

1. Boss's Chauffeur — When a Squirrel enters thanks to Swarmyard Massacre, Boss's Chauffeur puts a +1/+1 counter on itself

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