Wildstrike - Kind of a new player. Can anyone answer a simple question please?

Hey,

I'm trying wildstrike and it's a lot of fun. I just need help of someone experienced to help me understand something.

If i read correctly, WS converts ALL YOUR PHYSICAL DAMAGE to elemental. Why do i get physical output on that skill? (print screen: https://ctrlv.cz/shots/2017/08/17/FXQX.png)

Thank you so much