Orphea, Raven Court Heir

X: Destroy target creature with toughness lower or equal to 4. Orphea gains loyalty equal to the destroyed creature's toughness.
0: Orphea deals 2 damage to target creature. If damage is dealt that way, Orphea cannot be attacked until your next upkeep phase.
-10: Target player gets an emblem with: "sacrifice one creature at the beginning of your upkeep phase. If you cannot, destroy this emblem."