Charmander Kandi.

Charmander is easily the most mild-mannered of its evolution line. Its health and emotions can be easily read by paying attention to the flame on the tip of its tail. For example, if the flame grows suddenly, the Charmander is probably angered, and perhaps even using a Rage attack. It is scarce in the wild. Most are domestic Pokémon, raised to be distributed as starters by Professor Oak. As such, they are regarded as well-behaved Pokémon. It is often regarded as the most difficult Pokémon to start with because it has a disadvantage against the first two Gym Leaders in Kanto (Brock and Misty).

There are some who choose it anyway under the impression that it is stronger than Bulbasaur or Squirtle. However, while a Charmander can certainly grow to be a very powerful Pokémon, its strength in battle is very closely connected to its condition and health. Therefore, like a real fire, it must be tended to regularly and not strained or neglected. Most Trainers shouldn't have a problem with this, though impatient ones who expect it to be very strong right off the bat will have severe difficulty raising this Pokémon. A Trainer named Damian in Charmander the Stray Pokémon abandoned his completely because of this. They are also stubbornly loyal. In that same episode, Charmander wouldn't move from the rock, because Damian told it to wait. Ash had to carry it because it refused to move, even in the rain.