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| Grumpy Gliscor/VS. Gliscor
Grumpy Gliscor/VS. Gliscor (Japanese: VSグライオン VS. Glion) is the 378th round of the Diamond & Pearl chapter in the Pokémon Adventures manga.
The round opens with captain of the ship starting to work and walking to his boat. He soon realizes that Diamond is on his ship and ate his supply of food. He decides to take Diamond back to shore. However, he soon finds that all of his employees have been knocked out. A wild Gliscor appears and starts attacking. Diamond starts battling with it and commands Lax to spit its Berry out of its fur and throw at Gliscor to buy time. After that he commands Don to rub its head against Tru's tree. Gliscor bites Don's head, but it was too hard and made Gliscor feel pain in its mouth. Diamond then explains that Don is a Steel-type and has a very hard head, and rubbing its head against Tru's tree makes its defense go higher. By using this advantage he commands Tru to use Razor Leaf as the finishing blow. He then hands Byron's letter to the captain. Then the captain allows Diamond to stay on the ship. After that they faced another problem: a very big rock. The rock was then destroyed by a Flash Cannon from mystery Pokémon on a boat. Riley then introduces himself to Diamond.