Anarak, Lord of Oxidda

As an additional cost to cast this creature,
you may sacrifice any number of creatures.
Anarak costs x less to cast, where x is the
total power among the creatures sacrificed
this way.
Anarak, Lord or Oxidda can't be countered.
{3}{r}{r}, Anarak, Liege of Oxidda gains
hexproof and trample until end of turn.