They should make Race-specific challenge levels where each race gets a different sort of ability to use for that quest only.
Half-elf is stuck in limbo, unsure of who or where they are emotionally and physically. You goal is to decide whether you are male, female, or hermaphrodite. Your enemies are society, yourself, and that deep-seeded hatred for your full-blooded parents whose mistake it was to make you. Your special weapon is knowing right where to strike yourself to bleed out the fastest.