Roger

In teamfights, use Roger's 1st Skill to whittle down enemies from afar while using his 2nd Skill to maintain good positioning. When both sides have engaged, use his Ultimate to go for the enemy's back line. Use his 2nd Skill for extra Attack Speed and his 1st Skill to secure the kill.

In the laning phase, Roger should poke the enemy while in his Human form. Use his 2nd Skill for extra Movement Speed for an angle to hit with his 1st Skill. Use his Ultimate to close in on the enemy, followed by his 2nd Skill for Attack Speed and tear into them with Basic Attacks before finishing them off with his 1st Skill.