edhseer Commander synergy, explained
Instant
Mana cost: {1}{U}
Choose target creature. If a spell or ability that targets that creature would cause a source to deal damage to that creature this turn, prevent that damage.
on-cast —
Causes: damage is prevented.
Cares about: nothing.
damage is prevented — 568 cards in the game can cause this (Silhouette is one).
When Silhouette has damage prevented:
an instant is cast — 3,931 cards in the game can cause this (Silhouette is one).
When Silhouette 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 (Silhouette is one).
When Silhouette is cast:
5 other cards care about it too. These are the ones with the most connections.