>>35097174>>35097490>>35097512>>35097571Piloswine, Tangela, and Yanma all evolve through level up by learning Ancient Power, and they evolve into a mammoth, more vines, and a Meganeura
It's one of those evolutions that's tied in to a prehistoric theme! Granted, I feel like they should have kepts Swinub and Piloswine's best quality (the eyes) with Mamoswine. Luckily, Tangrowth and Yanmega are almost straight upgrades design wise.