Blur

Range: 0
Duration: Short
Area of Effect: Caster

This spell causes the position of the caster to shift and waver, which makes the caster more difficult to hit with an attack. A True Seeing spell counters this spell.

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Detect Invisibility

Range: Close
Duration: Medium
Area of Effect: One square in front of party

This spell allows the party to see invisible monsters, items, and magical effects. It does not reveal illusions.

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Improved Identify

Range: 0
Duration: Instantaneous
Area of Effect: One item in caster's hand

When this spell is cast, one item in the caster's hand is identified for what it really is. This reveals the item's name plus the attack or damage bonuses it has. Note that some items, such as special magical tomes, cannot be identified with this spell.

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Invisibility

Range: 0
Duration: Special
Area of Effect: One target

This spell causes the target to vanish from sight. The invisible character remains unseen until he attacks a monster or is hit. Certain powerful monsters can sense invisible characters, or even see them outright.

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Melf's Acid Arrow

Range: Long
Duration: Special
Area of Effect: One target

This spell creates a magical arrow that launches itself at a target as though it were fired by a fighter of the same level as the mage. The arrow is not affected by distance. The arrow does two to eight points of damage per attack. For every three levels the mage has earned, the arrow gains an additional attack. For example, at third- to fifth-level the arrow attacks twice, and at sixth- to eighth-level the arrow attacks three times.