Draconic Presence

(Races of the Dragon, page 104, DnD 3.5)

[Draconic]

When you use your magic, your mere presence can terrify those around you.

Prerequisite

Draconic Heritage, sorcerer level 1st

Benefit

Whenever you cast an arcane spell, opponents within 10 feet of and with fewer Hit Dice than you become shaken for a number of rounds equal to the level of the spell you cast. A Will save (DC 10 + level of the spell cast + your Cha modifi er) negates the effect. A successful save indicates that the opponent is immune to your draconic presence for 24 hours. This ability does not affect creatures with an Intelligence of 3 or lower or creatures that are already shaken, nor does it have any effect on dragons.