This crystal flickers from one color to the next in the blink of an eye.

You can activate this crystal to gain a +5 competence bonus on a single skill check for a skill in which you have no ranks. You are treated as being trained in the skill for the purpose of making this check. You must begin the check before the end of your turn to gain this benefit, and the check must be completed within 10 minutes. You can’t take 20 on this check (though you can take 10). This ability functions once per day.

Prerequisites: Craft Wondrous Item, guidance.
Cost to Create: 500 gp, 40 XP, 1 day.