edhseer Commander synergy, explained
Instant
Mana cost: {G}
Draw a card if an opponent has cast a blue or black spell this turn. Spells you control can't be countered this turn. You and permanents you control gain hexproof from blue and from black until end of turn.
on-cast — draws you 1 card
on-cast — grants a keyword
Causes: draw a card.
Cares about: nothing.
a card is drawn — 3,815 cards in the game can cause this (Veil of Summer is one).
When Veil of Summer makes a player draw a card:
57 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Veil of Summer is one).
When Veil of Summer 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 (Veil of Summer is one).
When Veil of Summer is cast:
5 other cards care about it too. These are the ones with the most connections.