For Dark Elves
Touch of the Mother (please come up with a better name if you use it)
Allows dark elves mana recovery when in the underdark or while underground. Alternatively this could work above ground, at night. Either or I mean, not both.

This idea can be modified to most of the races in some form or another, like it could be a dwarf ability that works on health or moves in the mountains, or for elves mana in the sunlight or wood elves in the forest (this would make druids silly I suppose).

This idea was more clear in my head earlier, I'll try and come up with more.

oh, and
Elf
the Master takes the pearl
As an elf gets older, he gets a bonus, or his enemy gets a - on saves, when casting spells, due to the much greater wisdom the elf has accumulated, for like sups and spells and stuff. Goes up as they get older. Doesn't work on other elves or people who are older.