Tormentor of the Shadows

Burrow (If this creature would deal combat damage to a player, instead you may have it become an Aura enchantment with enchant permanent and attach it to target creature defending player controls.)
If Tormentor of the Shadows is attached to a permanent as an aura, creatures that permanent's
controller controls get -1/-1.
{1}{b}: This creature gets +1/+1 until end of turn.