edhseer Commander synergy, explained
Instant
Mana cost: {B}
Split second
Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for all cards with the same name as that card and exile them. Then that player shuffles.
on-cast — searches a library
on-cast —
on-cast —
Causes: search your library, exile a card, shuffle a library.
Cares about: nothing.
a library is searched — 982 cards in the game can cause this (Extirpate is one).
When a permanent searches a library thanks to Extirpate:
anything is exiled — 2,497 cards in the game can cause this (Extirpate is one).
an instant is cast — 3,931 cards in the game can cause this (Extirpate is one).
When Extirpate 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 (Extirpate is one).
When Extirpate is cast:
5 other cards care about it too. These are the ones with the most connections.