[Where is my Premium Pack?]

 I just opened 4 and have 4 more

[Need help choosing among 3 torsos]

I need help choosing 2 of the 3 following torsos: Grim reaper, Fractured Heat Armor, and Windigo. The 2 choices should be ideally for an energy and physical mech. I already have a maxed out Grim reaper but am looking to see if people think windigo is better since i recently just got it. Same with the Heat armor.

Thinking of replacing grim reaper with windigo once i max it out and then either using my maxed zarkares on my heat mech or swapping it out with the Heat armor and using the other for my physical mech.