[quote=@Nimda]
<Snipped quote by Fractured>

Access to spellcasting cannot be immediately restored. Estimating time required to disable the enemy ability.
*Continues to analyze the structure and source of the attack*
[/quote]

*The structure is one of anti-magic as far as you can tell. Simply a force that cancels out magical effects. The source is, seemingly, the Beholder itself. Almost as though it is a natural ability or trait rather than an external force it has learned to harness*