When activated, it transforms Deisy into a lizard/human hybrid enveloped in Sun Flames with wings made of Flame. In this form, Deisy is able to regenerate any part of his body due to the properties of lizards being able to regenerate their fallen tails. In combination with the Sun Flame's characteristic, Activation, it becomes almost immediate and hardly any damage is done.
Additionally, the detached limbs can still move even after being separated. It is implied that these limbs can grow into a whole new body. It is explained that Deisy is unable to die because the Sun Flame is in his body. However, removing Deisy's Mare Ring removes this effect.