Magnifying Glass (3.5e Equipment)
From D&D Wiki
|Body Slot:||— (Held)|
|Aura:||Faint; (DC 15) Evocation|
This weapon can be used as a full round action to deal 1d6 fire damage to any fine creature. By using 10 consecutive full round actions, this powerful weapon an be used to deal 1 fire damage to any large or lerger creature. This weapon has no effect on or use against creature of diminutive to medium size.