Ragnarok

Ragnarok is a Decepticon from the Generation 1 continuity family.

Do not shake Ragnarok's hand, for he is literally made out of bombs and lasers.

Fiction

G.I. Joe vs. the Transformers continuity

When the time travelling Joes Spirit and Barbecue arrived on a post-apocalyptic future Earth along with the Cobras Doctor Mindbender, Tomax and Xamot, they were confronted by the sight of several Ragnaroks striding across the ruined landscape. G.I. Joe vs. the Transformers II #2

Ask Vector Prime

Ragnarok was a Outlier who could bud identical copies of himself. To prevent Ragnarok from overwhelming the time-displaced humans, a force such as Vector Prime, the Alternity, or Heinrad shunted the Decepticon to Primax 1104.10 Lambda. Ask Vector Prime

Timeless

Ragnarok's memories were stored in the Vestigial Cortical Complex alongside those of Bloodron, Preditron and Verminator. Timeless

Notes

• Ragnarok's existence was revealed in coded text within the Vestigial Cortical Complex. The character's name is not even fully shown, but the visible "-narok" and references to a "-rld destroyer" don't really leave a lot of options for this guy's name.