edhseer Commander synergy, explained
Instant
Mana cost: {R}
Target creature and each other creature that shares a color with it gain haste until end of turn.
on-cast — grants haste
Causes: nothing.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Surge of Zeal is one).
When Surge of Zeal 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 (Surge of Zeal is one).
When Surge of Zeal is cast:
5 other cards care about it too. These are the ones with the most connections.