1) A grass-type basketed bat pokemon, which evolves into a grass- & flying-type pokemon.
1st stage is just grass-type and walks on its wing hands and hind-legs, it is about 42cm in height and weighs about 650g.
2nd stage is a grass- & flying-type and thus flies in the air, it is about 86cm in height and weighs around 1kg.
3rd stage is still a grass- & flying-type, it is about 170cm in height and weighs around 3.5kg.
Their body is mainly covered in moss, after evolving multiple times, the moss became an organ with which this starter can now synthesize to create energy for its body as nutrients.
2) A fire-type smooth snake pokemon, which evolves into a fire- & rock-type pokemon.
1st stage is a fire-type and as suggested by its real-life animal inspiration, slitters like a snake, it is about 30cm in length/height (from head to tail) and weighs about 120g.
2nd stage is a fire- & rock-type, its belly is now hardened to a point like certain rocks, especially basalt but smoothened, it is about 85cm in length/height and weighs around 550g.
3rd stage is fire- & rock-type, now its belly is fully developed and is smoothened obsidian while having some lava rings around its body that it can heat up to make it go faster while being coiled into a wheel-like shape, 140cm in length/height, and weight about 1.5kg.
(For now, I only have abilities for the fire starter. These include Motor Drive and Flame Body as its non-hidden abilities and its hidden ability is Steam Engine.)
3) A water-type fish/European otter pokemon, which evolves into a water- & fighting-type pokemon.
1st stage is a water-type, standing and walking on both its front- and hind-legs, from head to toe it is 85cm in height and weighs about 34kg.
2nd stage is a water- & fighting-type, now most of the time standing and walking on just its hind-legs, it battles like a wrestler, it is 140cm in height and weighs around 60kg.
3rd is a water- & fighting-type, still walking on its hind-legs, it now wields a vegetable as a sword-like weapon, it is 165cm in height and weighs about 86kg.