edhseer Commander synergy, explained
Instant
Mana cost: {G}
Spells you control can't be countered by blue or black spells this turn, and creatures you control can't be the targets of blue or black spells this turn.
on-cast — restricts what can target it
Causes: nothing.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Autumn's Veil is one).
When Autumn's Veil 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 (Autumn's Veil is one).
When Autumn's Veil is cast:
5 other cards care about it too. These are the ones with the most connections.