So you want to get up that broken ledge...

The normal way and the bonus easy magic way

The Stats

You'll probably want around 20 in both Dex and Spd.
I was able to barely make it with 19.

The Jump

You'll want to just run and jump off the highest tip of the broken ledge. If you make it enough to at least "stick" to the platform, you'll probably be able to shimmy up the side onto the ledge.
There are more advanced ways to do it, but this guide is not for that.

The Jump (but without jumping)

At some point in the game, if you explore enough..
You'll find the spell Wind Gust.
Using this spell into a sharp incline will catapult you upward.
Lucky for you, the broken ledge serves as one such incline.
You know what to do..

The End

Hope this helped anyone wondering about how many skill points they'd need to actually make the jump without fancy techniques. Have a good day.

[Supreme Leader]

You can place a coffin there after finding the coffin spell and then jump from that.

[Vladon]

Game has weird bug with kinda double-jump, that can easilly solve this problem for everyone. You must press jump button 2nd time with interval something around 0.2 sec.
https://youtu.be/Yjbtgd2SD20

[Xylaite]

i got there with less than 10 dex by summoning a snail to get up, thinking that was the intended method lol

[Hsaelt]

I just levelled my jump height and jumped...

[Foedreyn]

I did what Cheoti did except still jumped like the manly witch I am.

[sim0n]

I just summoned a snail and jumped on it to reach the ledge

[MrBoobieBuyer]

Barrier and Coffin also allow you to get to this ledge

[Cheoti]

I just piled a bunch of coffins underneath me until it tipped over and I fell on the ledge... lol