How do you beat blastoise?

Answer 1

To beat Blastoise just train a Pikachu, Raichu or you can even catch Zapdos. My suggestion for moves is:

Pikachu:

Thunder (Learned at level 41 or by TM)

Thunderbolt (Learned at level 26 or by TM)

Iron Tail (Learned by TM)

Rain Dance (Learned by TM)

Raichu:

Thunder (Learned by prevolution or by TM)

Thunderbolt (Learned by prevolution moves or by TM)

Iron Tail (Learned by TM)

Rain Dance (Learned by TM)

Zapdos:

Thunder (Learned at level 85 or by TM)

Thunderbolt (Learned by TM)

Drill Peck: (Learned at level 49)

Fly: (Learned by HM)

Answer 2

For Blastoise you would be able to beat it by using Grass-type Pokemon such as Bulbasaur, Chikorita, Treecko, Turtwig, Snivy, Chespin, Gourgeist, Trevenant, Gogoat, Celebi, Chesnaught, Foongus, Sawsbuck, Maractus, Leavanny, Lilligant, Pansage, Leafeon and Venusaur and Electric-types such as Pikachu, Raichu, Magnemite, Magneton, Magnezone, Mareep, Ampharos, Voltorb, Electrode, Zapdos, Raikou, Jolteon, Zapdos, Chichou, Luxray, Plusle, Rotom, Zebstrika, Galvlantula, Eelektross, Stunfisk, Helioptile, Dedenne and Zekrom.