Beetwig -> Treetle -> Cannopytle
Type: Grass/Bug
HA: Compound Eyes -> Heavy Armor (Reduces super-effective damage by 50%)
Base stats: 90/120/115/60/85/60 (Cannonpytle)
Signature move: Napalm Seed (Grass - Physical - BP: 110 - PP: 10 - Acc: 100% - The user fires a seed at the target that will explode upon impact. This will leave the target with a burn.)
Can also learn: Wood Hammer, Megahorn, Iron Defense, Endure, Reversal, High Horsepower, Leech Seed, Seed Bomb

Flarrapin -> Ignishell -> Eruptoise
Type: Fire -> Fire -> Fire/Ground
HA: Evaporate (Water-type version of Lightning Rod)
Base stats: 79/83/119/116/65/68
Signature move: Krakatoa Beam (Fire - Special - BP: 140 - PP: 5 - Acc: 95% - The user opens up its plastron to launch a very powerful beam of geothermal energy at the target. This also damages the user.)
Can also learn: Lava Plume, Earth Power, Shell Smash, Rapid Spin, Iron Defense, Flame Wheel, Curse, Eruption, Flame Charge

Macaqua -> Sumonkey -> Yokozunami
Type: Water -> Water/Fighting -> Water/Fighting
HA: Guts -> Sturdy
Base stats: 126/104/75/85/75/65 (Yokozunami)
Signature moves: Ring Master (Water - Status - PP: 5 - Both sides preform a ceremony to make themselves stronger. Neither side can be taken off the field.) & Sidestep Slam (Fighting - Physical - BP: 80 - PP: 10 - Acc: 90% - The user dodges the target's attack and slaps them down. The move fails if the target if the target is not readying an attack.)
Can also learn: Aqua Jet, Close Combat, Heavy Slam, Arm Thrust, Liquidation, Belly Drum, Brine, Low Kick, Fake Out, Smelling Salts