...well it depends on what starter u got...like if u got bulbasaur and evolved ot into ivysaur it learns Razor Leaf at lv 22...or u can make it go to sleep,use razor leaf until it wakes up,use sleep powder again,and use rezor leaf...
Some options that could beat Misty's last Pokemon would be either the Razor Leaf, Vine Whip or Solar Beam attacks.
fire blast
by rescuing the president in the big blue building in the center of saffron city. but there will be a guy guarding a door to move the guy guarding the entrance of the big blue building you have to beat all the possible gyms there are to beat which will be the rock gym the leader is brock the water gym the leader is misty the grass gym the leader is Sabrina the electric gym the fighting gym
beat the gym leader
You have to beat the pastroria gym leader in order to get the move surf.
You have to beat the gym leader and move on to the next city to defeat Goldenrod City.
the move surf
you have to get the hm strength then beat the gym leader in canalave city
You must beat the last gym leader first.
In Pokemon FireRed, the badge needed to surf is the Cascade Badge. This badge is obtained by defeating Misty, the Cerulean City Gym Leader. Once you have the Cascade Badge, you can use the move Surf outside of battle to navigate bodies of water and access new areas in the game.
Any fire type pokemon, or a pokemon with a fire type move, I think poison too...
you have to beat all the trainers and then the flower clock will move to the gym leader