Snorlax

This is one of the pokemon ash has. This pokemon is a normal type pokemon. It is one of the heaviest pokemon. This pokemon is a heavy sleeper. It can be awaken only with a pokeflute.
While it is sleeping it can use an attack called "Snore". It is a slow pokemon in battle. It's defense and attack is high. Snorlax is weak against fighting and rock. It does not give any extra damage to other pokemon while it's moves aren't effective on ghost and rock. Below is snorlax waking up because of a pokeflute.

Pikachu

This pokemon as you all know is a very well known pokemon. This is our hero ash's first pokemon. Pikachu is an electric type pokemon. It is good against water and flying. It is weak against rock and ground. Pikachu's moves don't have any effect on Ground while it's moves are not much affective against rock and grass. The common moves used are thundershock and thunderbolt.