edhseer Commander synergy, explained
Instant
Mana cost: {1}{U}
Counter target spell unless its controller pays {2}.
on-cast —
Suspect up to one target creature.
on-cast —
Causes: counter a spell, suspect a creature.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Reasonable Doubt is one).
When Reasonable Doubt 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 (Reasonable Doubt is one).
When Reasonable Doubt is cast:
5 other cards care about it too. These are the ones with the most connections.