edhseer Commander synergy, explained
Sorcery
Mana cost: {U}{R}
Look at the top three cards of your library. Put one of them into your hand, put one of them on the bottom of your library, and exile one of them. You may play the exiled card this turn.
on-cast — puts cards into your hand
on-cast —
Causes: exile a card.
Cares about: nothing.
anything is exiled — 2,497 cards in the game can cause this (Expressive Iteration is one).
a sorcery is cast — 3,720 cards in the game can cause this (Expressive Iteration is one).
When Expressive Iteration 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 (Expressive Iteration is one).
When Expressive Iteration is cast:
5 other cards care about it too. These are the ones with the most connections.