[quote=@vancexentan]
[@Turboshitter]It causes a disruption field that causes great pain in a magus. Depending on the pain threshold of a mage it may do so. Of course I can't have it cancel out magic because the servants would just fissile out of existence. The stronger the spell the more pain caused.
[/quote]

Hrrmmm... fair enough, I suppose. It won't do much for the wraiths, though. They've already been summoned, so there's not much the field could do to just make them go away. Worst case scenario Albert would lose control over them and they'd attack indiscriminately, but I'm pretty sure that once an entity has been summoned, it won't go away if you just kill the summoner (Servants being an obvious exception of course because they're huge mana-hogs and they can't naturally replenish their stocks without consuming souls).