Boo Junior

Boo Junior is a Trinket that gives a 246 Might bonus and summons a pet.

Source
Boo Junior is a possible drop from Klarion in The Midnight Masquerade Halloween event instance.

Abilities
When summoned, Boo Junior uses Mental powers:
 * Fires energy balls
 * Panics enemies
 * Lifts enemies in the air using Telekenisis
 * Teleports toward enemies
 * Places Bastion upon player