edhseer Commander synergy, explained
Land
This land enters tapped.
Add {G} or {U}.
activated {T} — adds 1 mana
Until end of turn, this land becomes a 5/5 green and blue Plant creature with trample. It's still a land.
activated {3}{G}{U} — turns something into a creature
Whenever this land attacks, up to one other target creature has base power and toughness 3/3 until end of turn.
triggered —
Causes: nothing.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Restless Vinestalk is one).
When Restless Vinestalk enters:
199 other cards care about it too. These are the ones with the most connections.