Introducing the first of many mega’s for my upcoming Pokémon: Bass and Treble. It’s MEGA TORTERRA (Hope this counts)

Pokédex Entry: Upon mega evolution the Torterra grows 8x larger, nearing the size of a Wailord. In this titanous size it is known as the Earth crust turtle and old Yanshian legend even theorised the possibility of Mega Torterra being the underside of the Yansh region