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
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 creature it grants types to — 26 cards in Shelob's colors can cause this.
25 other cards cause it too. These are the ones with the most connections.
a Demon enters the battlefield — 170 cards in Shelob's colors can cause this (Shelob is one).
a creature is exiled — 275 cards in Shelob's colors can cause this (Shelob is one).
1 other card cares about it too. These are the ones with the most connections.
a creature leaves a graveyard — 645 cards in Shelob's colors can cause this (Shelob is one).
8 other cards care about it too. These are the ones with the most connections.
a creature gets a counter — 542 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver gets a counter:
2 other cards care about it too. These are the ones with the most connections.
a nontoken creature dies — 1,237 cards in Shelob's colors can cause this.
When a creature dies thanks to:
1,227 other cards cause it too. These are the ones with the most connections.
a creature goes to a graveyard — 1,280 cards in Shelob's colors can cause this (Shelob is one).
When a creature hits the graveyard thanks to Shelob, Dread Weaver:
2 other cards care about it too. These are the ones with the most connections.
a card is drawn — 789 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver makes a player draw a card:
10 other cards care about it too. These are the ones with the most connections.
a card in a graveyard — 2,555 cards in Shelob's colors can cause this (Shelob is one).
138 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 2,555 cards in Shelob's colors can cause this (Shelob is one).
When a creature hits the graveyard thanks to Shelob, Dread Weaver:
1 other card cares about it too. These are the ones with the most connections.
a creature attacks — 3,478 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver attacks:
48 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,478 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver attacks:
8 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,478 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver blocks:
5 other cards care about it too. These are the ones with the most connections.
a creature deals combat damage — 3,478 cards in Shelob's colors can cause this (Shelob is one).
61 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,493 cards in Shelob's colors can cause this (Shelob is one).
When Shelob, Dread Weaver is cast:
10 other cards care about it too. These are the ones with the most connections.