[quote=WizardGirl]
Wasn't a Simple Spell, no one can enter without being invited in by Ashley or someone else inside, also stops portals from being created inside
[/quote]

VS a wish? Normally Weiss wouldn't stand a chance of getting inside, but he is trying to fullfill a wish. He is pactbound and nigh unstoppable. Anything short of an arch angel wouldn't slow him down. The only way you can stop him is trough divine intervention.