The Court of Alovia

The Court of Alovia's power and toughness are
equal to the number of Vampires on the
battlefield.
At the beginning of each opponents end step,
they may pay {1}, if they do, you create a
Treasure token. If they don't, create a 1/1
white Human creature token.
{b/r}, Sacrifice a Human: Target Vampire gains indestructible until end of turn.