Hypnosis

Hypnosis simply puts anyone in its way to sleep after it has been used. The Hypnosis superpower does not include hypnotists or other practices of hypnosis that involve a physical object — it must be done through means such as psychic powers, a "sleepy" appearanceundefined, or even a Boring Story that causes its audience to doze off at some pointundefined.

Risks

 * The user might put themselves to sleep via Hypnosis.
 * On top of this, they can also potentially do the same to their own allies.
 * It may take too long to use Hypnosis against the enemy in battle, giving them time to counterattack or escape.