Tanks

Bacta tanks are functionally pet mystics dedicated to casting healing spells. Top them off and they'll cast the spells they know on a subject, up to their limit, along with Healing skill checks at their skill level as if at a fully-featured medical facility. Each recharge refreshes the spell limit - any overflow is lost.

Frackta tanks are their evil counterpart. They are automated torturers and interrogators. Through a battery of harmful spells and Intimidate skill checks at their skill level, they attempt to extract information from a subject. The owner can either set a specific question to be focused on or simply "encourage truth". Each recharge again refreshes the spell limit.

In both cases and to their respective ends, the tanks can cast cantrips at will as per any other spellcaster. A bacta tank can always stabilize, and a frackta tank can always torment, inflicting fatigue and shaken conditions in between keeping the target on the edge of their next resuscitation. It's not a subtle tool - it's a Take 20 on Intimidation.