edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{U}
Reveal the top ten cards of your library. Starting with the next opponent in turn order, each opponent chooses a different nonland card from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.
on-cast — searches a library
Causes: nothing.
Cares about: nothing.
a sorcery is cast — 3,720 cards in the game can cause this (Manifold Insights is one).
When Manifold Insights 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 (Manifold Insights is one).
When Manifold Insights is cast:
5 other cards care about it too. These are the ones with the most connections.