edhseer Commander synergy, explained
Creature — Bird
Mana cost: {1}{U}
Flying
Whenever this creature deals combat damage to a player, if you control three or more artifacts, that player mills four cards.
triggered — mills a card
Causes: mill a card.
Cares about: an artifact you control.
a Bird attacks — 486 cards in the game can cause this (Screeching Silcaw is one).
When Screeching Silcaw attacks:
a Bird creature is cast — 486 cards in the game can cause this (Screeching Silcaw is one).
1 other card cares about it too. These are the ones with the most connections.
a Bird deals combat damage — 486 cards in the game can cause this (Screeching Silcaw is one).
a nontoken Bird enters the battlefield — 487 cards in the game can cause this (Screeching Silcaw is one).
a Bird enters the battlefield — 538 cards in the game can cause this (Screeching Silcaw is one).
1 other card cares about it too. These are the ones with the most connections.
a card is milled — 772 cards in the game can cause this (Screeching Silcaw is one).
an artifact you control — 3,641 cards in the game can cause this (Screeching Silcaw is one).
3,638 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 (Screeching Silcaw is one).
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 (Screeching Silcaw is one).
When a card hits the graveyard thanks to Screeching Silcaw:
5 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 (Screeching Silcaw is one).
When Screeching Silcaw 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 (Screeching Silcaw is one).
When Screeching Silcaw attacks:
188 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 (Screeching Silcaw is one).
When Screeching Silcaw blocks:
25 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 (Screeching Silcaw is one).
2 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 (Screeching Silcaw 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 (Screeching Silcaw is one).
When Screeching Silcaw enters:
342 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 (Screeching Silcaw is one).
55 other cards care about it too. These are the ones with the most connections.