Steve Fidler of Vorpal Dice Press on Twitter: "@litzabronwyn I'd probably just pick and choose some features from other races to make it happen for a player if they wanted. Trolls have
Troll (Monstrous Manual)
Infusing Myth and Folklore into D&D Trolls – Nerdarchy
Stone Troll - Half Mean Boulder, Half Angry Troll : r/UnearthedArcana