edhseer Commander synergy, explained
Creature — Siren
Mana cost: {U}{B}
Flying
Target creature an opponent controls attacks this turn if able.
Attacking creatures get -1/-1 until end of turn.
activated {1}{B}, {T} — shrinks a creature by -1/-1
Causes: a creature dies.
Cares about: nothing.
a creature in a graveyard — 2,769 cards in the game can cause this (Shipwreck Singer is one).
Shipwreck Singer puts cards into the graveyard that:
799 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 (Shipwreck Singer is one).
When a creature dies thanks to Shipwreck Singer:
60 other cards care about it too. These are the ones with the most connections.
a creature dies — 2,830 cards in the game can cause this (Shipwreck Singer is one).
When a creature dies thanks to Shipwreck Singer:
451 other cards care about it too. These are the ones with the most connections.
a creature leaves the battlefield — 4,238 cards in the game can cause this (Shipwreck Singer is one).
33 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 (Shipwreck Singer is one).
440 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 (Shipwreck Singer is one).
When Shipwreck Singer attacks:
145 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 (Shipwreck Singer is one).
219 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 (Shipwreck Singer is one).
90 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 (Shipwreck Singer is one).
When Shipwreck Singer enters:
445 other cards care about it too. These are the ones with the most connections.