edhseer Commander synergy, explained
Land
This land enters tapped.
Add {U} or {R}.
activated {T} — adds 1 mana
Until end of turn, this land becomes a 2/1 blue and red Elemental creature with "During your turn, this creature has first strike." It's still a land.
activated {U}{R} — turns something into a creature
Whenever this land attacks, scry 1.
triggered — scries
Causes: scry.
Cares about: nothing.
you scry — 420 cards in the game can cause this (Restless Spire is one).
When Restless Spire scries:
10 other cards care about it too. These are the ones with the most connections.
a land enters the battlefield — 1,560 cards in the game can cause this (Restless Spire is one).
When Restless Spire enters:
199 other cards care about it too. These are the ones with the most connections.