edhseer Commander synergy, explained
Instant
Mana cost: {2}{U}
This spell costs {2} less to cast if it targets a blue spell.
on-cast — costs 2 less
Counter target spell unless its controller pays {3}.
on-cast —
Causes: counter a spell.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Mystical Dispute is one).
When Mystical Dispute 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 (Mystical Dispute is one).
When Mystical Dispute is cast:
5 other cards care about it too. These are the ones with the most connections.