If a rebound spell cast from the hand is commandeered, does it still rebound? If so, who controls it?
No, the card won’t rebound and will just go to its owner’s graveyard as normal.
When the spell resolves, the rebound ability won’t do anything because its controller didn’t cast the spell from their hand (or at all for that matter) and Rebound only exiles the card if it was cast from its controller’s hand.










