RACIAL TRAITS
Ability scores: +2 Charisma, +2 Strength or +2 Constitution
Size: Medium
Speed: 6 squares.
Vision: Low-light

Languages: Common, Primordial
Skill Bonuses: +2 Athletics, +2 Arcana.
Multiple Arms: Once per turn, you can draw or sheathe a weapon (or retrieve or stow an item stored on your person) as a free action instead of a minor action.
Fire Resistance: You have fire resistance equal to 5 + one-half your level.
Abyssal Origin: You are native to the Abyss, so you are considered an elemental and demon creature for the purpose of effects that related to creature origin.
Dance of Flame: You have the Dance of Flame power.

Dance of Flame
You call up serpents of fire to dance about your serpentine form, lashing our at nearby foes with fangs of flame
Encounter		  Implement, Fire
Minor Action      Close Burst 1
Target: Enemies in Burst
Attack: Strength vs. Ref, Charisma vs. Ref, or Constitution vs. Ref
Hit: 1d8 + Strength modifier, Charisma modifier, or Constitution modifier fire damage.
Level 21: 2d8 + Strength modifier, Charisma modifier, or Constitution modifier fire damage.
Special: You may use any weapon as an implement for this power.

Feats: Eh, just let them take Tiefling ones. I'm not doing THAT much work.