Will I ever be able to 1 hit oblivion monsters?

Only an I/L can even attempt this. It requires a f'uckton of magic.

You can begin 1hkoing at O1 with about 1400 magic, but you need ~1570 to 100%.

~1590 magic to start 1hkoing at O4, ~1780 to 100%.

Essentially, you will be only able to start 1hkoing at O1 as you approach level 200.

Say I got to lvl 200 with my current equips.... would I be able to have that much magic? I don't know how these things work.

Thanks