Turmoil

This prayer provides a base increase of 15% to your Attack and Defence and a 23% increase to your Strength. As a bonus it also adds 15% of your opponent's Attack to your own, 15% of their Defence to your own and 10% of their Strength to your own.

The curse appears to have a limit of a +29% bonus to attack and Defence, and +32% to strength, regardless of the respective levels of a monster.