When an opponent casts Maddened Marauder targeting a unit you control via Possession, does the unit move to your base (controller's base) or the opponent's base (owner's base)?

Ruling: The unit moves to its controller's base. When determining which base a unit moves to, only the controller matters, not the owner.

Nuances:

• Owner is important for non-board areas, but for base location, controller is what matters
• It's impossible for a unit controlled by one player to end up at the base of another player