Dreamwretch Terror

Flying
As Dreamwretch Terror enters the battlefield,
inscribe. Then you may sacrifice any number of
creatures and/or Pacts. If you do, Dreamwretch
Terror enters the battlefield with twice that
many +1/+1 counters on it. (To inscribe, create a
Pact token. It's an artifact with "{4}, Sacrifice this
artifact: Draw a card. This ability costs {1} less to
activate for each other creature or Pact you've
sacrificed this turn.")