Endure Sunlight
(Libris Mortis: The Book of the Dead, page 26, DnD 3.5)
[Monster]
Your vulnerability to sunlight is reduced. Prerequisites Sunlight powerlessness or sunlight-related weakness.
Benefit
You can resist all dangerous effects of sunlight for a number of rounds equal to 1 + your Charisma modifier (minimum 1 round). After this time, if you are still exposed to sunlight, you take the normal effects as appropriate for your kind.