Surefoot

(Spell Compendium, page 216, DnD 3.5)

Abjuration

Level: ; Ranger 1
Components: V, S
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: 10 minutes/level

You speak a few words and motion toward your feet, which begin to glow with a green hue.

Your steps are sure and true, even on the narrowest ledges. You gain a +10 competence bonus on Balance, Climb, Jump, and Tumble checks. In addition, you do not lose your Dexterity bonus to AC when balancing or climbing.