Alrlinn's Chance

(As a Duel enters the battlefield, choose target
creature that you control, then choose target creature
an opponent controls to duel. Other creatures can't
attack or block. When one of those creatures dies,
sacrifice this battle.)
When Arlinn's Chance is sacrificed, the winner
gains control of all creatures the loser controlled
until the end of the winner's next turn. Untap
those creatures.They gain haste.