RulingHall of Heroes (rules 1.0–1.4)
Phoenix: If I attach Mind Control to a minion, what happens to any attachments on that minion?
Question
If I attach Mind Control to a minion, what happens to any attachments on that minion?
Answer
When you attach Mind Control to a minion, any attachments on that minion remain attached. However, because that minion loses the minion card type and gains the ally card type, any abilities on those attachments that affect the attached minion no longer apply.
-Phoenix insert