edhseer Commander synergy, explained
Land
This land enters tapped.
Add {R} or {G}.
activated {T} — adds 1 mana
This land becomes a 3/4 red and green Dinosaur creature until end of turn. It's still a land.
activated {2}{R}{G} — turns something into a creature
Whenever this land attacks, another target attacking creature gets +2/+0 until end of turn. Untap that creature.
triggered — gives +2/+0
triggered — untaps a permanent
Causes: untap a creature.
Cares about: nothing.
a creature untaps — 519 cards in the game can cause this (Restless Ridgeline is one).
a land enters the battlefield — 1,560 cards in the game can cause this (Restless Ridgeline is one).
When Restless Ridgeline enters:
199 other cards care about it too. These are the ones with the most connections.