While Liam was having his battle with Iris, Shiranui was training up for his battle with Alain.  The venue for the battle was chosen to be the Winstrates' house in Hoenn.  He had caught a Snorunt in the Crown Tundra, named his new friend Yuki-Onna and evolved it to Froslass.  He managed to find a Starminite, a Dragoninite, a Feraligite, a Froslassite, an Excadrite, a Scolipite, a Greninjite, a Delphoxite, a Hawluchanite and a Meowsticite—newly discovered mega stones that would allow Mega Evolution to more of his Pokémon including his newest catch.  He sent the Greninjite off to Liam by Delibird as a celebratory gift for making the Masters Eight.