edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{W}{W}
Put a +1/+1 counter on each of up to two target creatures. You may search your library and/or graveyard for a card named Basri, Devoted Paladin, reveal it, and put it into your hand. If you search your library this way, shuffle.
on-cast — puts a counter on it
on-cast — searches a library
on-cast — brings a card back
on-cast —
Causes: put a counter on a creature, search your library, anything leaves a graveyard, shuffle a library.
Cares about: a card in a graveyard.
anything leaves a graveyard — 2,503 cards in the game can cause this (Basri's Aegis is one).
When a permanent leaves a graveyard thanks to Basri's Aegis:
13 other cards care about it too. These are the ones with the most connections.
a creature gets a counter — 2,691 cards in the game can cause this (Basri's Aegis is one).
When a creature gets a counter thanks to Basri's Aegis:
31 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.
3,584 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 (Basri's Aegis is one).
When Basri's Aegis is cast:
424 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 (Basri's Aegis is one).
7 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 (Basri's Aegis is one).
7,579 other cards care about it too. These are the ones with the most connections.
anything is cast — 31,128 cards in the game can cause this (Basri's Aegis is one).
When Basri's Aegis is cast:
5 other cards care about it too. These are the ones with the most connections.