Wartortle evolves into Blastoise starting at level 36. (Squirtle  evolves into Wartortle starting at level 16.)    Wartortle is #8 in the National Pokedex, and was int…roduced in the  Generation I Pokemon titles (Red, Blue, and Yellow) where it  evolved from Squirtle, one of the starter pokemon. In Generation VI  (X and Y), it is available through a Water-type Friend Safari.