edhseer Commander synergy, explained
Creature — Spider
Mana cost: {G}{U}
Reach
At the beginning of your upkeep, mill a card.
triggered — mills a card
Create a 1/1 green Insect creature token for each creature card in your graveyard. Activate only as a sorcery.
activated {2}{G}{U}, {T}, Sacrifice this creature —
activated {2}{G}{U}, {T}, Sacrifice this creature — makes a token
Causes: mill a card, sacrifice a creature, a creature dies, create an Insect creature token, put an Insect creature token onto the battlefield.
Cares about: an upkeep, a creature in a graveyard.
a Spider enters the battlefield — 206 cards in the game can cause this (Vilespawn Spider is one).
a Spider creature it grants types to — 207 cards in the game can cause this.
206 other cards cause it too. These are the ones with the most connections.
a nontoken creature is sacrificed — 1,714 cards in the game can cause this (Vilespawn Spider is one).
When you sacrifice Vilespawn Spider:
a creature is sacrificed — 1,741 cards in the game can cause this (Vilespawn Spider is one).
When you sacrifice Vilespawn Spider:
20 other cards care about it too. These are the ones with the most connections.
provide a creature to sacrifice — 2,720 cards in the game can cause this.
2,714 other cards cause it too. These are the ones with the most connections.
a creature in a graveyard — 2,769 cards in the game can cause this.
1,042 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 (Vilespawn Spider is one).
When Vilespawn Spider dies:
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 (Vilespawn Spider is one).
When an Insect enters thanks to Vilespawn Spider:
a creature token is created — 2,799 cards in the game can cause this (Vilespawn Spider is one).
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 (Vilespawn Spider is one).
When Vilespawn Spider dies:
457 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 (Vilespawn Spider is one).
Vilespawn Spider fills your graveyard toward the 7 or more cards:
442 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 (Vilespawn Spider is one).
When Vilespawn Spider attacks:
155 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 (Vilespawn Spider is one).
232 other cards care about it too. These are the ones with the most connections.
a creature is cast — 18,010 cards in the game can cause this (Vilespawn Spider is one).
90 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 (Vilespawn Spider is one).
475 other cards care about it too. These are the ones with the most connections.