Can I use SoM on a different hero to avoid damage on Beorn? Beorn is immune to player card effects, but SoM effects him only indirectly. Only the hero that has SoM attached is effected directly. Hence SoM might be used to protect Beorn. At least that's my interpretation.
Example:
Legolas has SoM attached. Beorn acts as a defender. He has already 9 damage tokens. Legolas exhausts SoM before Beorn is chosen as a defender. Beorn defends and his damage is taken by Legolas instead.
Possible or impossible due to Beorns immunity to player card effects?