Ranking

The sorcerers like Morgana, Balthazar, Veronica, and Horvath can use magic even without their magic rings' help, basically wandless casting also sorcerers can use wizarding magic making them more formidable.

1.Morgana le fay

2.Balthazar Blake

3.Veronica

4.Horvath

5.Grindelwald

6.Voldemort

7.Dumbledore

8.Snape

9.Moody

10.Flitwick

Harry after becoming an apprentice will be powerful he will be able to take on Snape in his 1st year at Hogwarts easily but the only problem is he has less experience.