(The Witcher 3) Geralt vs the Ice Giant feat. Conductors of Magic

On my first Witcher 3: Wild Hunt NG+ playthrough - Death March difficulty. I was using Piercing Cold during my first run of the game (watch my Detlaff fight), trying out Conductors of Magic this time around. This is more fun for sure! I can do both Aard and Igni, both with significant damage. Though, the real hero spell is Yrden. OP.