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Woolosion gathers mud and shapes it into a mound large enough to sleep in, then uses Flame Wheel to bake it solid. It spends the night inside, often with smaller Pokémon it befriends. At dawn, it moves on, building a new shelter each evening.

It can hide behind a shimmering heat haze that it creates using its intense flames. Woolosion usually live in water but come out onto land seeking food occasionally.