This is a more challenging variant of the Sand Lord from the BoB.
Please let me know if you see any issues. Thanks. :D
Sand Prince
Large Elemental (Air, Earth)
Hit Dice: 10d8+50 (95 hp)
Initiative: +1
Speed: 40 ft. (8 squares), burrow 40 ft. (sand only)
Armor Class: +12 (-1 size, +1 Dex, +12...