Kiawe first encountered Marowak when it stole the Wela Crown during the Wela Fire Festival. It is said that when it is placed on a Pokémon's head, it can become valiant and strong like Wela Volcano itself.
Kiawe and Turtonator took up the task of retrieving the crown.
Kiawe's Turtonator was instrumental in battling Marowak but it lost the first match against because they were in a rush to get the crown back and
Kiawe wasn't paying proper attention to their opponent. He didn't read Marowak's actions and he just thought they could win as long as they unleashed a Z-Move but battling is all about watching their opponent closely and understanding them.
After a training session with
Ash Ketchum and
Pikachu, they challenged Marowak and were prepared this time. Shell Smash was a risky move to use in the battle but was used as a setup move in combination with Inferno Overdrive to knock out Marowak and win the rematch battle. They were able to return the Wela Crown after Marowak gave it up.
Kiawe's Marowak took the crown and wore it because it wanted to grow stronger. The rematch battle made
Kiawe realize that and also that its heart burns with passion, just like his does. Marowak is kind of obnoxious but it wanted to become a partner with
Kiawe and it was caught willingly after the rematch battle.
The seventh battle of the Top 16 round of competition for the Alola League featured
Acerola's Gengar (Greedy Rapooh) verses
Kiawe's Marowak. Kiawe’s used his Marowak, who is a Fire and Ghost type, as Ghost-type moves are super effective against each other.
Professor Kukui noted that the battle might not last long because of the type effectiveness. Marowak was affected by Cursed Body and was unable to move and then Gengar used Thief to take its bone away. After it was able to move again,
Kiawe's Marowak went inside of Gengar and got its bone back and unleashed a counterattack and knocked out Gengar.
In Alola Pokémon League semifinals first match,
Kiawe's Marowak battled against
Gladion's Lycanroc (Midnight Form) as the first matchup. Marowak really couldn't find a way to counter Lycanroc's Stone Edge and was defeated by it. As the semifinals had 2 Pokémon on-hand,
Kiawe's Turtonator came out and during the battle it learned the move Focus Blast and it was super effective against Gladion's Lycanroc, defeating it.