76 days later,  his Generals attacked the Autobot headquarters on Planet Zone, stealing their Energon Z, a powerful new energy-source. They then headed to Earth to search for the Zodiac, a primordial orb which supposedly birthed all life in the known universe.
Meanwhile, Dai Atlas, having found Victory Saber and taken him to Zone for medical attention, was informed of the Energon Z theft. He was then able to determine that the Generals would next target the Zodiac, and what their eventual goal was: by fusing the Energon Z and Zodiac together, they would be able to create a new planet! Travelling to Earth, Dai Atlas and Sonic Bomber put a halt to Violen Jiger's schemes, slaying several of his Generals and obtaining the Zodiac for the forces of justice. Enter the New Supreme Commander, Dai Atlas!
Vector Prime speculated that the Dark Spark could have been the Matrix of Leadership corrupted by Violen Jiger and unleashed on the Multiverse as a weapon, among other explanations. Ask Vector Prime, 2015/05/18
The news that Predaking had an organic-looking brain was of deep concern to Vector Prime, as it may have meant Violen Jiger (referred to as "the Violent Chigger") had access to GoBot technology and that would mean Gargent infiltration of other realities was highly advanced. The Chronarchitect was to be consulted. Ask Vector Prime, 2015/06/02
In Primax 1086.0 Kappa, Zarak Maximus came across the Bio Ranger, Iga. Taking advantage of Zarak Maximus's identity crisis, Iga pointed him towards Micropolis, where he claimed the Micromaster inhabitants had Zodiac energon that could calm the voices in his head. Zarak lost the battle against the Micromasters, but still allied with Iga afterwards, who appointed Zarak Maximus as the first of the Thirteen Great Demon Generals. Ask Vector Prime, 2015/06/11 Iga would scour multiple realities for recruits to his Thirteen Great Demon Generals. He drew Ragnarok from the dead-end universe the Decepticon had been imprisoned in, and drew Galvatronus from a Dead Universe. Ask Vector Prime, 2015/6/27 Iga personally plucked Puzzler's compontents out of Gargent 1184.10 Gamma and permanently fused them together, earning him the combiner's undying loyalty. Ask Vector Prime, 2015/7/15 Iga and his generals were eventually defeated. Ask Vector Prime, 2015/6/27
Known liar Sideways claimed to know enough about Violen Jiger to not mess with him. Ask Sideways, 2015/07/07 Surprisingly, this answer might have actually been the truth.
 als geistig ausgeglichen und emotional harmonisch empfundener, in körperlicher und vor allem praktischer Hinsicht als ausreichend kraftvoll erlebter Allgemeinzustand voller Arbeits- oder Leistungsfähigkeit und damit uneingeschränkter Handlungsfähigkeit
 Ich gebe meiner Gesundheit den Vorrang.  Das schadet deiner Gesundheit!  Er sollte mehr für seine Gesundheit tun.  Seine Gesundheit lässt sehr zu wünschen übrig.  „Frauen trinken aber auch viel Tee, um sich möglichst viel Flüssigkeit zuzuführen und es in puncto Gesundheit den Topmodels gleichzutun.“   „Alkohol ist zwar für die Gesundheit des Menschen schädlich, für viele Krankheitserreger ist er dagegen absolut tödlich.“   „Gesundheit, Gewicht und Genuss: Wer sich richtig ernähren will, bringt die Uhr ins Spiel.“ 
 eine angegriffene Gesundheit, eine ausreichende Gesundheit, eine gute Gesundheit, eine miserable Gesundheit, eine robuste Gesundheit, eine schlechte Gesundheit, eine schwache Gesundheit, eine unverwüstliche Gesundheit, eine zerrüttete Gesundheit  auf die Gesundheit anstoßen, auf die Gesundheit trinken, jemandem Gesundheit wünschen  abträglich für die Gesundheit sein, bei bester (/guter) Gesundheit sein, gut für die Gesundheit sein, die Gesundheit selbst sein, von zarter Gesundheit sein  jemandes Gesundheit gefährden, über die Gesundheit klagen, an der Gesundheit Raubbau treiben, die Gesundheit aufs Spiel setzen, vor Gesundheit strotzen, jemandes Gesundheit wiederherstellen  sich bester Gesundheit erfreuen, sich der besten Gesundheit erfreuen, sich einer eisernen Gesundheit erfreuen, sich einer blühenden Gesundheit erfreuen  Gefährdung der Gesundheit, -> (Info) Recht auf Gesundheit, Ruinierung der Gesundheit, Schädigung der Gesundheit
Violen Jiger (バイオレンジャイガー Baiorenjaigā) is Legion. Slain on the battlefield by Autobot hands or otherwise deprived of life while desperately craving more, innumerable vanquished Decepticon souls  refused to find peace in the grave. Rather, they coalesced together on the dead world known as the Tenth Planet, forming the vengeful entity called Violen Jiger.
A demonic force of many faces, minds and voices, Violen Jiger's motivations are unified by the hatred burning in the spirits that comprise him. Now the Decepticons' New Emperor of Destruction,  he uses his supernatural powers to command the warriors who will follow him, granting them abilities and upgrades they'd have never possessed otherwise.
In his corporeal form, Violen Jiger is capable of separating into three enormous, insect-like creatures: Vion (バイオン Baion), Lenja (レンジャー Renjā) and Igern (イガーン Igān). His true form, however, is ghastly, infernal and vulnerable to rainbows.
Sometimes he is referred to as Bio Ranger Iga or the Violent Chigger. If we were you, we'd stick with the usual name.
The entity known as Violen Jiger is a fusion of the souls of slain Decepticon warriors. Zone Part 12 After somehow coming to life on the Tenth Planet, he proceeded to cover the world in dark clouds, blotting out all starlight and turning it into a barren, desolate world. From then on, he would use it as his base of operations. Zone Part 10 Zone Part 12
Violen Jiger next gathered a group of Decepticon giants to serve as his Nine Great Demon Generals; Bruticus, Predaking, Abominus, Menasor, King Poseidon, Devastator, BlackZarak, Trypticon, and Overlord. Under his orders, they took control of various worlds and began construction of a "Decepticon Zone". This caught the attention of Star Saber, who mobilized the Autobot forces of planet Zone against them. Zone Part 1
When the Decepticons attacked planet Feminia, Star Saber was there himself to try to stop them, only to be caught on the planet as it exploded. A month later, Violen Jiger once more sent out his Generals, and while doing so declared that the ultimate goal of the Decepticons was total control of the universe. As part of his plan for this, his Generals stole Energon Z from planet Zone, then travelled to Earth to acquire the Zodiac, so that "Super Energy" could be created by infusing the Zodiac with the Energon Z. This plan was foiled by the arrival of the Powered Masters, Dai Atlas and Sonic Bomber. Transformers: Zone
Violen Jiger's Generals then suffered a series of defeats against the Powered Masters. Zone Part 5 Zone Part 6 In the meantime, however, Metrotitan had emerged from his birthplace beneath the surface of Titan and was taught the ways of evil by the Generals. Zone Part 7