edhseer Commander synergy, explained
Legendary Creature — Spider Demon
Mana cost: {3}{B}
Whenever a nontoken creature an opponent controls dies, exile it.
triggered — hits a graveyard
Put two +1/+1 counters on Shelob. Draw a card.
activated {2}{B}, Put a creature card exiled with Shelob into its owner's graveyard —
activated {2}{B}, Put a creature card exiled with Shelob into its owner's graveyard — puts 2 counters on it
activated {2}{B}, Put a creature card exiled with Shelob into its owner's graveyard — draws you 1 card
Put target creature card with mana value X exiled with Shelob onto the battlefield tapped under your control.
activated {X}{1}{B} — blinks a permanent
What a deck led by this card wants
Causes: exile a nontoken creature, a nontoken creature leaves a graveyard, put a creature into a graveyard, put a counter on anything, draw a card, put a creature onto the battlefield.
Cares about: a nontoken creature dies.
a Spider enters the battlefield — 206 cards in the game can cause this (Shelob 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 Demon enters the battlefield — 284 cards in the game can cause this (Shelob is one).
When Shelob, Dread Weaver enters:
a creature is exiled — 1,003 cards in the game can cause this (Shelob is one).
When a creature is exiled thanks to Shelob, Dread Weaver:
4 other cards care about it too. These are the ones with the most connections.
a creature leaves a graveyard — 1,302 cards in the game can cause this (Shelob is one).
12 other cards care about it too. These are the ones with the most connections.
anything is exiled — 2,497 cards in the game can cause this (Shelob is one).
1 other card cares about it too. These are the ones with the most connections.
a creature gets a counter — 2,691 cards in the game can cause this (Shelob is one).
When Shelob, Dread Weaver gets a counter:
33 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.
When a creature dies thanks to:
2,759 other cards cause it too. These are the ones with the most connections.
a creature goes to a graveyard — 3,011 cards in the game can cause this (Shelob is one).
When a creature hits the graveyard thanks to Shelob, Dread Weaver:
5 other cards care about it too. These are the ones with the most connections.
a card is drawn — 3,815 cards in the game can cause this (Shelob is one).
When Shelob, Dread Weaver makes a player draw a card:
57 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 (Shelob is one).
8 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 (Shelob is one).
Shelob, Dread Weaver:
434 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 7,589 cards in the game can cause this (Shelob is one).
When a creature hits the graveyard thanks to Shelob, Dread Weaver:
4 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 (Shelob is one).
When Shelob, Dread Weaver is cast:
89 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 18,448 cards in the game can cause this (Shelob is one).
32 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 (Shelob is one).
When Shelob, Dread Weaver enters:
354 other cards care about it too. These are the ones with the most connections.