edhseer Commander synergy, explained
Instant
Mana cost: {U}
Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.
on-cast — adds 1 mana
Causes: nothing.
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (High Tide is one).
When High Tide 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 (High Tide is one).
When High Tide is cast:
5 other cards care about it too. These are the ones with the most connections.