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If you are using the feats variant rule, you may be eligible to take the following cambion racial feats.
Cambion Magic
Prerequisite: Cambion
You learn the magic of those formed from evil. You can cast the command, detect magic, and alter self spells, each of which you can cast once without expending a spell slot. You regain the ability to cast these spells in this way when you finish a long rest. Charisma is your spellcasting ability for all these spells.
Fiendish Flight
Prerequisite: Cambion
Tapping into your fiendish heritage you've manifest leathery wings. You gain a flying speed of 60 feet.5.0
Source: D&D Wiki