I think it does a good job of expanding the monster options, plus based on feedback I think we hit the mark by giving lore and races that inspire some fun story idea. #wotcstaff
— Mike Mearls (@mikemearls) March 29, 2018
If you specifically need higher challenge monsters to throw at a level 10+ group, might want to wait for Mordenkainen's Tome of Foes to. Releases in May. #wotcstaff
— Mike Mearls (@mikemearls) March 29, 2018