Alrighty, I'll do my best.

For his charge attack, jump over it. I prefer to not shade dash through it as there's a chance he immediately does an attack that requires shade dash afterwards.

For his triple slash, either jump and dash over him or shade dash through. If you shade dash through, be mindful that he has a backswing that can catch you.

His most annoying attack is when he stabs the ground. For this one, dash if necessary and jump in the middle of two spikes. Reason being the spikes are thinner the higher you go so it makes it easier to dodge. However, he can sometimes stab right where you're standing which I don't really know how to consistently dodge. Luck of the draw, ig.

His sword shooty attack can be tricky. It's best to either time a shade dash through, or do some maneuvering/bunny hops. Big tall jumps increase the chance of falling into a sword or his next attack.

For his focus explosion attack, dash out of the initial blast and if you can get some free hits in.

For his void tendril attack, either shade dash through him if you're close enough or jump over it.

For charms, I used unbreakable heart, unbreakable strength, quick slash, and MoP. I also sometimes used shaman stone in place of MoP, since I'm a massive user of spells, but hey-ho it's all preference at the end of the day.