When a unit with Deathknell is stolen via Possession and then dies, who gets the Deathknell trigger and where does the card go?

Ruling: When a unit with Deathknell is stolen via Possession and dies, the controller (the player who stole it) gets the Deathknell trigger, but the card goes to the owner's trash (the original owner).

Sequence:

• The stolen unit dies
• The card goes to the owner's trash
• The controller (who stole it) gets the Deathknell effect

Nuances:

• This ruling is based on designer intent (red text) rather than being explicitly supported in the current rules text
• Cards always move to the owner's zones (hand, deck, or trash), never the controller's zones when owner and controller differ
• This prevents logistical issues with card sleeves and ownership tracking