Mato (マト Mato) is one of the two characters Ash and company meet in the beginning of the movie The Wishing Star: Jirachi. He is accompanied by Miki. Mato, along with Miki, battled with Ash and Green for the fruits and also introduced Ash and his friends the idea of seeing the Illusion forest. As Ash and his friends sealed the darknes, with Jirachi granted Ash's wish to restoring the damage, Mato and Miki can be seen by a bridge witnessing the regeneration of the bridge's structure. He was seen again in the credits along with Miki eating dinner with Sapphire, Ruby, and Violet in Hoenn.
Mato used Glaceon in the tag battle against Ash and Green over the fruits that Mato and Miki collected but had washed down the river. In the battle Glaceon was partnered with Miki's Leafeon and proved to be a strong opponent. Neverthless, it was defeated by Pikachu's Thunderbolt while trapped by Blastoise's Whirlpool. After the battle, it was seen enjoying the Melons along with the others. It was seen again in the credits watching Leafeon and Skitty playing with the other Pokemon.
Glaceon's known attacks are Signal Beam, Icy Wind and Hidden Power.