I guess i'll go for MSI 1080 instead of strix for the reason below.
Compatibility Notes
The Phanteks - ECLIPSE P400S TEMPERED GLASS ATX Mid Tower Case supports video cards up to 395mm long, but video cards over 280mm may block drive bays. Since the Asus - GeForce GTX 1080 8GB ROG STRIX Video Card is 298mm long, some drive bays may not be usable.