Delew is brimming with fiery and psychic energy, so much so that it requires a staff to help channel and harness most of it. Even with this aid, the staff and its tail are almost always alight due to the surplus of energy.
A Delew is said to possess the genes of all Pokémon. It gazes into the flame at the tip of its branch to achieve a focused state, which allows it to see into the future.