Newegg.com has MSI Z270 Gaming Pro Carbon Motherboard + Phanteks Eclipse P400 ATX Mid Tower Case (automatically added to cart) on sale for $149.99 - $20 Rebate = $129.99. Shipping is free w/ Shoprunner or Newegg Premier otherwise shipping is $1.99.
This board is normally $149.99 and the case is normally $69.99, so $130 for both is actually a pretty good deal despite Z370 boards coming out in Q4 with new processors.
Supports 7th/6th generation Intel Core processors. Be sure to include rebate form, receipt/invoice, original UPC and serial number to qualify for rebate redemption.