Levels of the Mortal World

As there is no clear distinction between the power levels in Harry Potter world so for convenience I am dividing them into 6 levels:

1. <Apprentice level>: Most wizards from grade 1-5 with average magic capacity and low level spells and skills fall in this category.

2. <Young Wizard level>: Most wizards from senior levels with some experience in duelling forms this level. Mostly 6-7 grade students are in the group.

3. <Adult Wizard level>: The level for most of the graduated wizards who are average in all sorts of magic with some battle experience.

4. <Auror level>: A level that Adult Wizards can possess after 3 years of hard and intensive Auror training in honing their skills. Most of the Aurors and Death eaters such as Lupin and Lucius are of this category. The 'Golden Trio' is an exception due to their incredible experiences and adventures.

5.<Elite Auror level>: This level belongs to the top tier people of magical community. Aside from battle experience and hard work. it requires talent. The four deans in Hogwarts, Aurors such as Moody, kingsley and Death eaters such as Bellatrix, Dolohov belongs to this level.

6. <Grand Sorcerer level>: In the canon, there are only two Powerhouses- Voldemort and Dumbeldore who have achieved this level. This level not only requires talent and experience but some special experiences and adventures.

These levels are for the cannon part and characters. Also this is just a conservative estimate for ideal situations. Sometimes a low level Wizard can also defeat a higher level one due to many factors like; spot on judgement and performance, proficiency of the use of spells, speed and skill of casting spells, physique, emotions etc.