edhseer Commander synergy, explained
Instant
Mana cost: {1}{G}
Target creature and all other creatures with the same name as that creature get +2/+2 until end of turn.
on-cast — gives +2/+2
Causes: nothing.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Echoing Courage is one).
When Echoing Courage 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 (Echoing Courage is one).
When Echoing Courage is cast:
5 other cards care about it too. These are the ones with the most connections.