Cloud/Fire giants, being rather large with exceedingly large hands could gain the ability to smash their hands together creating a huge noise that would temporarily deafen a creature. (Think earclap, but since you're not actually whacking their head/ears, the duration wouldn't be as bad)

Effects: Would deafen someone for 0 hours, until they can get the ringing out their ears.

Restrictions: Can only be done once every three hours. Can only be done when not wielding anything in both hands.

Flame away...