Trap Mastery (3.5e Feat)
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As a veteran of the dungeoneering trade you have a wealth of experience with traps.
Trapfinding, Craft (trapmaking) 8 ranks
You gain a +2 bonus to Craft (trapmaking) checks, to the DC of traps you create, to Search and Spot checks to detect traps and to Reflex saves to avoid them. You also gain a +2 dodge bonus to AC to avoid attacks by traps.