edhseer Commander synergy, explained
Legendary Enchantment Creature — Spider
Mana cost: {2}{G}{G}
Reach
Whenever an opponent casts an instant or sorcery spell, create a 1/2 green Spider creature token with reach.
triggered — makes a token
Causes: create a Spider creature token, put a Spider creature token onto the battlefield.
Cares about: an instant is cast, a sorcery is cast.
a Spider creature it grants types to — 101 cards in Arasta of the Endless Web's colors can cause this.
100 other cards cause it too. These are the ones with the most connections.
provide a creature to sacrifice — 610 cards in Arasta of the Endless Web's colors can cause this.
609 other cards cause it too. These are the ones with the most connections.
an enchantment is cast — 628 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web is cast:
11 other cards care about it too. These are the ones with the most connections.
a token enters the battlefield — 838 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When a Spider enters thanks to Arasta of the Endless Web:
a token is created — 839 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
6 other cards care about it too. These are the ones with the most connections.
an enchantment it grants abilities to — 636 cards in Arasta of the Endless Web's colors can cause this.
635 other cards cause it too. These are the ones with the most connections.
cast a sorcery — 623 cards in Arasta of the Endless Web's colors can cause this.
622 other cards cause it too. These are the ones with the most connections.
an enchantment enters the battlefield — 639 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web enters:
9 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,620 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web attacks:
6 other cards care about it too. These are the ones with the most connections.
a creature attacks — 3,620 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web attacks:
41 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,620 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web blocks:
1 other card cares about it too. These are the ones with the most connections.
a creature is cast — 3,640 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
When Arasta of the Endless Web is cast:
29 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,710 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
11 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 4,064 cards in Arasta of the Endless Web's colors can cause this (Arasta of the Endless Web is one).
87 other cards care about it too. These are the ones with the most connections.