[Starfighter08]

Originally posted by Wauthan:
You dispell global spells by either casting the Astral spell aptly named "Dispell" or by casting the global spell yourself (which creates a little tugowar between your spellpower and the original caster. You don't always manage to win).

Astral spell, I see. That's why I never came across it. Guess I'll try Arco then.