edhseer Commander synergy, explained
Creature — Wurm
Mana cost: {2}{G}{G}
Trample
At the beginning of your upkeep, if there are four or more card types among cards in your graveyard, put three +1/+1 counters on this creature.
triggered — puts 3 counters on it
Causes: put a counter on anything.
Cares about: an upkeep.
a creature gets a counter — 2,691 cards in the game can cause this (Soul Swallower is one).
When Soul Swallower gets a counter:
33 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 (Soul Swallower 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 (Soul Swallower is one).
When Soul Swallower attacks:
113 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 (Soul Swallower is one).
When Soul Swallower 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 (Soul Swallower is one).
When Soul Swallower blocks:
18 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 (Soul Swallower is one).
When Soul Swallower attacks:
a creature deals combat damage — 17,934 cards in the game can cause this (Soul Swallower is one).
When Soul Swallower deals combat damage:
194 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 (Soul Swallower is one).
When Soul Swallower enters:
298 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 (Soul Swallower is one).
41 other cards care about it too. These are the ones with the most connections.