edhseer Commander synergy, explained
Land
As this land enters, you may reveal an Elemental card from your hand. If you don't, this land enters tapped.
Add {R}.
activated {T} — adds 1 mana
Target creature gains haste until end of turn.
activated {R}, {T} — grants haste
Causes: nothing.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Flamekin Village is one).
When Flamekin Village enters:
199 other cards care about it too. These are the ones with the most connections.