edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{B}
Target opponent reveals their hand. You choose a card from it. That player shuffles that card into their library.
on-cast —
Causes: shuffle a library.
Cares about: nothing.
a library is shuffled — 1,189 cards in the game can cause this (Perish the Thought is one).
When a permanent shuffles a library thanks to Perish the Thought:
a sorcery is cast — 3,720 cards in the game can cause this (Perish the Thought is one).
When Perish the Thought is cast:
424 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 (Perish the Thought is one).
When Perish the Thought is cast:
5 other cards care about it too. These are the ones with the most connections.