What ability would you choose???
Skin Invulnerability (you can't feel anything. All sense of feel sensations are gone)
Immortality (any injuries you sustain will always be there. Surgery can't even help. Nothing)
Super speed (you're always in super speed mode - mach 10)
Flight (your body propels you from everything and everything propels from you, like a bubble around your body. If you need an example, let me know)
Elemental control (basic level within a 20 ft radius, but, whatever element you're controlling, you become it and it's always active. You revert back to the last element youve controlled)
Pyrokineses (downfall - any skin to skin contact covers their body in flames)
Beast Boy (your any animal of your choice first human second, meaning, your an animal that can transform into a human. You can only transform into a human for 30 minutes every day. While as an animal, you get all of the urges to eat what they eat, all of their instincts, etc...)