edhseer Commander synergy, explained
Instant
Mana cost: {3}{R}{R}
Choose target instant or sorcery spell that targets only a single permanent or player. Copy that spell for each other permanent or player the spell could target. Each copy targets a different one of those permanents and players.
on-cast — copies a spell
Causes: copy an instant, copy a sorcery.
Cares about: nothing.
a sorcery is copied — 83 cards in the game can cause this (Radiate is one).
When Radiate is copied:
21 other cards care about it too. These are the ones with the most connections.
an instant is copied — 87 cards in the game can cause this (Radiate is one).
31 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 (Radiate is one).
When Radiate 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 (Radiate is one).
When Radiate is cast:
5 other cards care about it too. These are the ones with the most connections.