If I use Possession on a creature, do I get any equipment the creature has as well?

Ruling: When you use Possession on a creature, the equipment stays attached to the creature and your unit gets all the effects of the equipment, but the equipment still belongs to the original controller.

Sequence:

• You take control of the creature with Possession
• Equipment remains attached to the creature
• Your unit benefits from all equipment effects
• If the unit dies or equipment is unattached, it returns to the opponent

Nuances:

• The opponent can still use effects like Weaponmaster to attach that equipment from your unit to theirs since they still control the equipment
• Equipment cannot be unattached without a separate effect doing so (like Weaponmaster or the unit being killed)
• Attached cards may have different controllers from their top-most card