FusionDex

Nuseed stab their spikes into the sides of volcanoes, slowly absorbing lava through them. Should their bodies become too full and heavy, these Pokémon may fall, spilling all of the lava they have stored onto the ground.

They stick their spikes into cave walls and absorb the minerals they find in the rock. A Nuseed stores boiling magma in the hump on its back.