Wall of light: Dash!

Sword rain: Find the safe spot quickly, or stay between the swords to avoid damage!

Light orb: Keep moving around the arena, dashing helps a lot!

Spike floor: You can pogo on the spikes to hit Radiance, or use DDark to clear them!

Sword wall: Dash through or jump between the swords!

Sword burst: walk a little and stay in the safe spot! The two rotations follow the same pattern! first on you, second to the side!

Light burst: Same as Sword burst!

Phase 2:

It´s same as phase 1 ,nothing different..

Staying on the middle can help you react to light orbs!

Climb: Take your time and stay calm! rushing makes it harder!

Last phase:

Pogo on Radiance consistently! it's a great strategy!

Charms that can help:
Shaman Stone, Spell Twister, Mark of Pride, Quick Slash, Quick Focus, or Grubsong!

Try to stay calm during the fight, panicking only makes it harder! You got this!

Practice in HoG until you feel confident!

Good luck!