Cassiopeia, Serpent's Embrace

Menace, deathtouch
Whenever Cassiopeia becomes blocked, put two
-1/-1 counters on each creature blocking her.
Ultimate — {b}{g}{u}, {t}: Each untapped
creature you don't control with power less
than Cassiopeia's power loses all abilities and
becomes a 0/2 green Elemental creature with
defender.