edhseer Commander synergy, explained
Creature — Spider
Mana cost: {1}{B}{G}
Reach
Whenever this creature deals combat damage to a creature, put a -1/-1 counter on that creature.
triggered — puts a counter on it
Whenever you put one or more -1/-1 counters on a creature, each opponent loses 1 life and you gain 1 life.
triggered — makes each opponent lose 1 life
triggered — gains you 1 life
triggered — drains each opponent
Causes: put a counter on anything, make a player lose life, gain life.
Cares about: a creature gets a counter.
a Spider enters the battlefield — 206 cards in the game can cause this (Obelisk 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.
life is gained — 2,076 cards in the game can cause this (Obelisk Spider is one).
When Obelisk Spider gains life:
84 other cards care about it too. These are the ones with the most connections.
put a counter on a creature — 2,691 cards in the game can cause this.
2,681 other cards cause it too. These are the ones with the most connections.
life is lost — 3,160 cards in the game can cause this (Obelisk Spider is one).
When a permanent makes a player lose life thanks to Obelisk Spider:
46 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 (Obelisk Spider is one).
8 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 (Obelisk Spider is one).
When Obelisk Spider attacks:
116 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 (Obelisk Spider is one).
When Obelisk Spider attacks:
180 other cards care about it too. These are the ones with the most connections.
a creature blocks — 17,934 cards in the game can cause this (Obelisk Spider is one).
When Obelisk Spider blocks:
23 other cards care about it too. These are the ones with the most connections.
a nontoken creature attacks — 17,934 cards in the game can cause this (Obelisk Spider is one).
When Obelisk Spider attacks:
a creature enters the battlefield — 19,800 cards in the game can cause this (Obelisk Spider is one).
When Obelisk Spider enters:
303 other cards care about it too. These are the ones with the most connections.
anything enters the battlefield — 26,499 cards in the game can cause this (Obelisk Spider is one).
47 other cards care about it too. These are the ones with the most connections.