Gorgonian Sisters of Pharika

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
{8}{b}{g}: Monstrosity 5. (If this creature isn't monstrous, put five +1/+1 counters on it and it
becomes monstrous.)
When Gorgonian Sisters of Pharika becomes monstrous, Put a petrification counter on each
non-Gorgon creature. It gains defender and
becomes a colorless artifact in addition to its
other types. Its activated abilities can't be
activated. (A creature with defender can't attack.)