Can Ride the Wind be played on a friendly exhausted unit?

Ruling: Yes, you can play Ride the Wind on an exhausted unit. There is no rule preventing you from targeting an exhausted character with any effect.

Nuances:

• Exhausted units can be targeted by spells and abilities
• Exhaust is only the cost for a unit to use its inherent ability to move
• Spells and abilities that move cards don't require the unit to be ready unless specifically stated