I am suggesting adding the Deathtouched Mortif Template. It is strong, but has some excellent background/roleplay aspects.
Here is the information:Name: Death touched: Mortif
Resource: from Dragon 313 pg 66
LA: LA +1
Bonuses: +4 Cha +2 Wis -2 Con, along with various weak features.
Lore:
The deathtouched trace their ancestry to a half-undead being - usually a katane or the victim of a bungled resurrection. Although rarely recognized as such, the taint of unlife lingers through generations, and a deathtouched can manifest abilities derived from its unliving ancestor.
Deathtouched tend to be pale and thin, with black, dirty brown, or gray hair. Many have some small physical feature that belies their heritage, such as sharpened canines, a ghoul-like tongue, a faint smell of the grave, eyes that glow red, yellow, or green in low light, or tight, corpselike skin. They wear the clothing and hairstyles of the region they live in but favor fashions that conceal their nature and discourage notice. Deathtouched can be reclusive and are prone to fits of depression that last days or even weeks at a time. They become fond of anyone who can understand or tolerate their affliction.
Most races do not trust creatures that are undead, in whole or in part, and a deathtouched whose ancestry has been exposed is likely to be driven off or killed. Some elves consider them abominations that must be hunted to extinction. This causes most deathtouched to be fearful of others. Neither can deathtouched expect acceptance from their undead kin, who see them as no different from other mortals. Certain cults of death gods treat deathtouched with respect, though, and necromancers might welcome them in exchange for skin, hair, and blood samples, which are invaluable to their experiments. Deathtouched feel a kinship with tieflings but do not get along well with aasimar.
Like the planetouched, the deathtouched have no society or culture of their own and instead blend into existing ones. Mortif, the deathtouched described here, are the most common variety: humans with an undead or half-undead forebear. Other races might also have deathtouched members.
Mortif adventure out of greed, a need for meaning, or a desire for self-validation. Some go out of their way to hunt down their undead progenitor, or all undead, to exact revenge for their torment-filled lives. Others seek to gain mastery over their nature or to gain acceptance by their fellow citizens. Mortif are usually neutral, though there are many chaotic and lawful individuals in their number. Their isolation from society discourages loyalty to any but themselves.
Mortif fight out of self-preservation or greed. They do battle when and if it benefits them and usually protect their own hides before their honor or reputation
Considerations:
I dont think combinations like star elf/death touched are viable, but power gaming combinations like that should probably not be allowed.