Forensic Gadgeteer triggers, creating a Clue token.
Activate Urza's first ability by tapping the Clue, adding ({U} magic symbol) .
Activate Mox Opal by tapping it, adding ({1} magic symbol) .
Activate Words of Wind by paying ({1} magic symbol) , replacing the next card you would draw by causing each player to return a permanent to their hand instead.
Activate the Clue by paying ({1} magic symbol) and sacrificing it, causing you to return Mox Opal from the battlefield to your hand, and causing each opponent to return a permanent they control from the battlefield to their hand due to Words of Wind.
Repeat.
Results
Infinite storm count.
Return all permanents opponents control to their owner's hand.