Protection

The spell Protection does exactly what it says.

Spell Description
Ones armour isn't strong enough to protect well against the foe ahead? Then Protection helps. Casting it, the selected person will be surrounded by a white aura, and their defensive values are increased against the foe for a limited time. However, this spell is only suited for one person. For the whole party, the Protect All spell is needed. The direct opposite of this spell is the Curse spell.

The purple potions fulfill the same purpose as the spell.

Trivia

 * In both parts of Ultima Underworld, the spell is specialised into Missile Protection.