If I take a unit with Possession and then use Portal Rescue on it, does it return to my base or the owner of the card?

Ruling: The unit returns to its owner's base, not the controller's base. Portal Rescue has been errata'd so that the owner of the card plays it to its base.

Sequence:

• Banish the friendly unit (which you control but don't own)
• The unit goes to its owner's banish zone
• The owner plays it to its base, ignoring its cost

Nuances:

• The errata changes Portal Rescue to specify "its owner plays it to its base" rather than the controller playing it