Kaja

For initiating teamfights, use Kaja's 2nd Skill to soar, use the terrain to reposition. Follow up with his 1st Skill to slow and reduce their damage, then immediately cast his Ultimate and let the team clean up.

In the laning phase, use Kaja's 1st Skill to poke and recover HP. If the enemy engages, use his 2nd Skill to take off, then kite with his aerial Basic Attacks. Kite when attacked, attack when they're out of steam.