What happens to equipment attached to a unit when Arcane Shift is played on it?

Ruling: When a unit is banished by Arcane Shift, equipment attached to it detaches in an order chosen by the unit's controller, then recalls to its controller's base.

Sequence:

• The unit is banished to base ready
• Equipment detaches from the unit (in order chosen by unit's controller)
• Equipment that is not at its controller's base recalls to its controller's base without changing exhausted status

Nuances:

• The rules don't explicitly state what happens to equipment in an opponent's base, but the intended ruling is that it recalls to the equipment controller's base
• Equipment controlled by another player technically creates an illegal game state if it ends up unattached in an opponent's base, though this is a rules gap rather than an intended interaction
• When a unit with stolen equipment (like Akshan the Immortal who gives control of attached equipment) would change zones while in base, it creates a rules ambiguity, but the sensible ruling is that gear can be in opponent's base when attached, and unattached gear in opponent's base recalls to controller's base