Squirtle's evolution line is one of those classic Pokémon journeys that feels so satisfying to complete, especially when you finally see that tough little turtle turn into the powerhouse that is Blastoise. To get there, you'll need to level up Squirtle until it hits level 16, where it evolves into Wartortle. This first evolution is pretty straightforward—just keep battling with Squirtle, whether it's wild Pokémon, trainers, or even just using EXP Share if you're playing one of the newer games. Wartortle's got a bit more bulk and a cooler tail, but the real prize comes at level 36, when it evolves into Blastoise. That's when you get those iconic cannons and a massive stat boost.
One thing I love about this evolution line is how it mirrors the growth of a Pokémon trainer. Squirtle starts off cute and manageable, Wartortle feels like a solid middle ground, and Blastoise? Absolute unit. If you're impatient, you can always use a Rare Candy to skip some grinding, but there's something rewarding about earning those levels through battles. I remember in 'Pokémon FireRed,' my Wartortle evolved during the fight against Koga, and it was such a hype moment—Blastoise tanked his attacks and swept the rest of his team. Good times.