The management and control of magical energies has been a highly refined skill for centuries among the filthy magic-users. Additionally, the gods and goddesses they serve provide support and power for their spells. Rather than oppose their power directly, the experienced Mageslayer will turn their own strength against them. A powerful reflection shield will cause the warlock to taste his own fire, the disciple of Aravan to know her own fear, and the crusader's holy light will shine in his own eyes.
This skill is now passive, and no longer needs to be activated.