Absorbing the leftover power from the Element Prism and strumming my guitar, I transformed into Super Elemental Slayer, my final form, shouting at the top of my lungs, "MAXIMUM POWER!"
Then I gathered up all my energy to release the ultimate finishing attack.
"Elemental Spiral!" I screamed, unleashing a torrent of fire, water, earth, air, lightning, and shadows all at once.
The demon howled in pain as my attack hit its mark. The room shook with the force of the impact, and the doctor's machine began to malfunction. It was a small victory, but it gave me hope.
The demon and the doctor were finally defeated, and the lab was destroyed in the process. But the battle had taken its toll on me, and I collapsed to the ground, weakened by the immense power I had unleashed.