Li Li 리리
ETC 정예타우렌족장
Jaina 제이나
Uther 우서
Sonya 소냐
Sergeant Hammer (Unlocked Level 12) 해머상사
Thrall (Unlocked Level 15) 쓰랄

http://www.reddit.com/r/heroesofthestorm/comments/35l5qr/free_to_play_rotation_may_12th_week/