Fortress Eternum

When Fortress Eternum enters the battlefield, you may reveal a Cleric or Warrior card from your hand.
If you don’t, it enters the battlefield tapped.

{t}: Add {w}, {u}, or {b}.

{2}, {t}: If you control a full party, creatures you control gain vigilance and “When this creature dies, return it to the battlefield tapped at the beginning of the next end step.”

The bastion of the Knights of the Eternal Order, servants of Kelemvor.