edhseer Commander synergy, explained
Instant
Mana cost: {X}{U}
As an additional cost to cast this spell, you may exile any number of blue cards from your hand. This spell costs {2} less to cast for each card exiled this way.
on-cast —
on-cast — costs less
Up to X target creatures phase out.
on-cast —
Causes: exile a card, a creature phases out.
Cares about: nothing.
anything is exiled — 2,497 cards in the game can cause this (March of Swirling Mist is one).
an instant is cast — 3,931 cards in the game can cause this (March of Swirling Mist is one).
When March of Swirling Mist 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 (March of Swirling Mist is one).
When March of Swirling Mist is cast:
5 other cards care about it too. These are the ones with the most connections.