Who do you think is the most powerful wizard or witch?
How would you measure "power"? And more importantly, why would you want to know?
Grindelwald and Voldemort were strong in magic. Gellert could non-verbally parry a spell with ease (as Percival Graves), and Riddle's horcrux idea was fairly successful.
Some people say harrypotter.wikia.com/wiki/Albus_Dumbledore or harrypotter.wikia.com/wiki/Gellert_Grindelwald. But DEFINITELY not harrypotter.wikia.com/wiki/Harry_Potter
----------------------
💙6 Points, Sapph