Trip's Serperior was first revealed in the Japanese opening for
Pocket Monsters Best Wishes Season 2.
Trip's Servine evolved into
Trip's Serperior some time just before the Pokémon Junior World Cup Tournament after some hard training.
Battle Against Alder's Bouffalant at the Junior World Cup
For winning the Pokémon Junior World Cup Tournament,
Trip was given the opportunity to challenge
Alder.
Trip's Serperior was paired up with
Alder's Bouffalant.
Trip purposely used
SolarBeam against
Alder's Bouffalant despite knowing that its Ability is Sap Sipper.
Trip wanted to defeat Buffron while it's at the peak of its potential but things didn't work out as planned.
Trip's Serperior tried to hit it at its weak spot underneath its body but
Alder's Bouffalant was able to endure the attack and land on its hooves fine.
Alder's Bouffalant one hit K.O'd
Trip's Serperior with
Head Charge.
Battle Against Pikachu at the Isshu League
Trip's Serperior participated in the Isshu League in the preliminary match where it was matched up against
Pikachu.
Cilan noted that
Trip's Serperior speed and its attack power had leveled up quite a bit too since the last time they saw it. The match was pretty one sided for a long time as
Pikachu wasn't able to counter its speed and ended up getting wrapped up. After using
Iron Tail on the ground to get loose,
Pikachu used a combination attack of
Iron Tail and
Electro Ball to one hit KO
Trip's Serperior. As a result,
Trip was eliminated from the Isshu League and
Ash Ketchum advanced to the next round.