edhseer Commander synergy, explained
Land
Add {C}.
activated {T} — adds 1 mana
Regenerate target Shade, Skeleton, Specter, Spirit, Vampire, Wraith, or Zombie.
activated {2}, {T} —
Causes: regenerate a Shade, regenerate a Skeleton, regenerate a Specter, regenerate a Spirit, regenerate a Vampire, regenerate a Wraith, regenerate a Zombie.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Accursed Duneyard is one).
When Accursed Duneyard enters:
199 other cards care about it too. These are the ones with the most connections.