edhseer Commander synergy, explained
Instant — Arcane
Mana cost: {3}{U}
Exchange control of two target lands.
on-cast —
Splice onto Arcane {3}{U}
Causes: exchange land .
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Shifting Borders is one).
When Shifting Borders 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 (Shifting Borders is one).
When Shifting Borders is cast:
5 other cards care about it too. These are the ones with the most connections.