edhseer Commander synergy, explained
Legendary Land
As Three Tree City enters, choose a creature type.
Add {C}.
activated {T} — adds 1 mana
Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.
activated {2}, {T} — adds number of creatures you control of the chosen type mana
Causes: nothing.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Three Tree City is one).
When Three Tree City enters:
199 other cards care about it too. These are the ones with the most connections.