edhseer Commander synergy, explained
Instant
Mana cost: {1}{B}
Search your library for a black card with mana value less than or equal to the number of creature cards in your graveyard, reveal it, put it into your hand, then shuffle.
on-cast — searches a library
on-cast —
Causes: search your library, shuffle a library.
Cares about: a creature in a graveyard.
a creature in a graveyard — 2,769 cards in the game can cause this (Mausoleum Secrets is one).
2,759 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Mausoleum Secrets is one).
When Mausoleum Secrets is cast:
427 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 (Mausoleum Secrets is one).
When Mausoleum Secrets is cast:
5 other cards care about it too. These are the ones with the most connections.