Nunu needed an antagonist that could use fire, and I came up with this after some time. He's supposed to be a reference to both Cell from DBZ and Knuckles from Sonic. He exists in the Menokama no Koden timeline.

Name: Sinefir (Etymology: "Sin" + "Lucifer" + Anagram of "Fenris")

Species: Bionoid with varying phenotype(echidna-like in Adult and Teen)

Sex: Male

Abilities:

Absorption - Sinefir's most notable ability is his power to absorb other living things to increase his power. In his early forms he achieves this through simple oral consumption, but as a very time consuming process, his third form forces him to use his standard form: he turns his victims into raw energy and absorbs them, either through the spikes on his hands (Child) or the ends of his "dreadlocks" (Teen and Adult). Stronger victims take longer to energise and thus are more resistant to this. He also gains memories - including skills - from his victims, making his knowledge grow as a side effect with each victim.

Elemental - True to his purpose as a destroyer, Sinefir has a natural talent with fire magic, able to release energy from his body to generate it.

Flight - Come Teen form, he is able to naturally levitate, having absorbed so much energy he is able to life himself off the ground.

Energy - The insane amounts of energy he takes in allow him to create quite a wide array of energy attacks to fit his needs.

Sixth Sense - He absorbs not just the physical bodies, but souls of his victims, giving him an eternal engine in the form of the souls' constantly-generated life force. He is able to read emotions and can read an individual's personality, allowing him to judge the best victims. Seemingly connected to this, his natural senses are also intensely heightened.

Weaknesses:

-In his first three forms he is extremely weak physically. In his latter forms, absorbing too much energy at once can tire him out. To make matters worse, all energy he was absorbing will be re-released, reforming the person he turned into energy in the first place! This fatal flaw is why he prefers to test victims' abilities before attempting to absorb them.

-Cold temperatures. His body heat is so intense from his energy consumption that he has become sensitive to cold, feeling its effects immediately. He begins to weaken as his excess energy rapidly defuses.

-Hubris. As he becomes more sentient, he begins to exhibit the very sins he is supposed to exterminate, and this can become quite fatal. Hubris is an obvious one.

(Might add more of these later)

Personality: Sinefir's creation purposely made him quite psychotic and with only one objective: the destruction of Silho, who had wronged both his creators. Unfortunately, one of his two creators was Dr. Veinsufin, a nihilist who desired nothing but destruction and figured an artifical being like Sinefir could accomplish it better. While Silho remained a primary objective, Sinefir's programming made his ultimate goal the end of all life, and following that, his own self-termination. Of course, he could delay termination of other life forms in light of greater goals; i.e. sparing prey's lives so they could lure in even more. Sinefir was designed to feel no emotion apart from maybe delight, gleaned from sadistic activities.