This spell will cancel the next spell cast at the recipient, including beneficial spells, after which it is used up. It will also protect against attacks that have the word 'spell' in their incant. You must say 'Spell Shield' immediately when this spell is used. Spell Shield cannot be used in conjunction with a Reflect Magic. If you have a Spell Shield active you may still accept spells that are touch cast. You cannot 'accept' spells that are thrown at you, nor can you accept spells when you are unconscious.