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 1/4 blue and red Elemental creature with that ability It's still a land.
activated {2}{U}{R} — turns something into a creature
Switch this creature's power and toughness until end of turn.
activated {0} — makes your creatures bigger
Causes: nothing.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Wandering Fumarole is one).
When Wandering Fumarole enters:
199 other cards care about it too. These are the ones with the most connections.