Prey Upon
Sorcery
Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)
It is the nature of the strong to survive.
Ryan Pancoast
Aether Revolt (AER)
• #120Rulings
If either target is an illegal target as Prey Upon resolves, no creature will deal or be dealt damage.
(wotc • 2018-12-07)
Rulings
If either target is an illegal target as Prey Upon resolves, no creature will deal or be dealt damage.
(wotc • 2018-12-07)