edhseer Commander synergy, explained
Creature — Bird // Sorcery — Adventure
Mana cost: {U} // {1}{U}
Flying
This creature gets +1/+1 as long as there are seven or more cards in your graveyard.
static — gives +1/+1
Mill four cards, then put an instant or sorcery card from among them into your hand.
on-cast — mills a card
on-cast — brings a card back
Causes: mill a card, an instant leaves a graveyard, a sorcery leaves a graveyard.
Cares about: a card in a graveyard, an instant in a graveyard, a sorcery in a graveyard.
an Adventure sorcery is cast — 77 cards in the game can cause this (Most Decrepit Old Bird is one).
an instant leaves a graveyard — 202 cards in the game can cause this (Most Decrepit Old Bird is one).
a Bird attacks — 486 cards in the game can cause this (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets attacks:
a Bird creature is cast — 486 cards in the game can cause this (Most Decrepit Old Bird 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 (Most Decrepit Old Bird is one).
a nontoken Bird enters the battlefield — 487 cards in the game can cause this (Most Decrepit Old Bird is one).
a Bird enters the battlefield — 538 cards in the game can cause this (Most Decrepit Old Bird is one).
1 other card cares about it too. These are the ones with the most connections.
anything leaves a graveyard — 2,503 cards in the game can cause this (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets leaves a graveyard:
13 other cards care about it too. These are the ones with the most connections.
a sorcery it makes cheaper to cast — 3,585 cards in the game can cause this.
3,578 other cards cause it too. These are the ones with the most connections.
a sorcery is cast — 3,720 cards in the game can cause this (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets is cast:
424 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.
606 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 (Most Decrepit Old Bird is one).
When a card hits the graveyard thanks to Most Decrepit Old Bird // Speak Secrets:
7 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 (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets attacks:
127 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 (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets attacks:
200 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 (Most Decrepit Old Bird 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 (Most Decrepit Old Bird is one).
When Most Decrepit Old Bird // Speak Secrets enters:
360 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 (Most Decrepit Old Bird is one).
64 other cards care about it too. These are the ones with the most connections.