Lance's Archen is Lance's fourth Pokémon and the powerhouse of his team.
Archen is very scatter brained, quickly gaining interest in, and losing interest in various things it encounters.
Archen was revived from a fossile found in the Desert Resort by an archeologist. Newly revived it chased after Lance who was in the area, eventually leading to a battle which resulted in Archen defeating Petilil and Sandile, however it quickly fell to the newly evolved Dewott and was caught.
- A running gag is that whenever Archen sees something shiny it completely forgets what it should be doing and chases after it. This results in each of its defeats prior to its evolution.