Studying Pays Off

Roll two dice and multiply the numbers. Then,
divide the result by 2.
You may divide the result evenly to deal damage
to any number of creatures.
(ex: if you roll a 6 and 6, then you may deal
18 damage once or 9 damage twice etc.)
If you have solved 5 or more Mastery cards,
then you may cast this spell again and may target
the opponent.