Mariah, Crystalline Witch

Hexproof
Mariah, Crystalline Witch Has Defender as
long as your devotion to {w} or {b} is
less than 4
{w}: Create a 0/3 white Wall with Defender
{3}{t}: Tap Target Creature opponent controls.
It does not untap during its next untap phase.
"Why choose a pet over rocks when I can
just have pet rocks? Oh! A kitty!" -Mariah