The LEGO Monster Fighters set 9466, released in 2012, features a Crazy Scientist and his Monster. With a total of 430 pieces, this set is designed for ages 8-14 and includes a range of characters such as the Monster, Scientist, and Crazy Scientist. The assembled product measures 590 mm in height, 5400 mm in length, and 2820 mm in width, making it a substantial and engaging build for young LEGO enthusiasts.