| Category | Heroes |
| World | Bal-Kriav |
| Race | Demon ( Demon Lord ) |
| Gender | male |
| Alignment | chaotic evil |
| Deity | none |
Onaikai has been trapped in the Kernsking mountains since 269 GE, nearly 7,000 years. He was one of more than a dozen demon lords that invaded Bal-Kriav during a conflict pitting demons against angels. Angels and their allies of the Quara'tun Covenant vanquished this malevolence. The demons retreated through their rifts, returning to Piranoth 's Steps to nurse their wounds.
When the demons fled, thousands of their own were left behind as prisoners or, being too far from any escape route, were caught and imprisoned. No one was willing to risk escorting these prisoners to a rift, especially since tens of thousands of free demons were fleeing. The Quara'tun Judges, heads of the legal grounds for the Demon Spawn War, issued Covenant Order 436-X12, which stated that all imprisoned demons were to be executed. Their reasoning was that the demons were simply too evil and dangerous to be left in the Quara'tun system. Most of these orders were carried out.
A Higher Power, be they god, demon lord, archdevil, or primordial lord, wields tremendous power. They are imbued with the same energy as their home system. When the order came to execute the demon prisoners, a primordial, who had fought against the angels in the Creation War but was now their ally in the Demon Spawn War, decided to keep one prisoner alive. Talos, 5,000 years before he would ascend to Higher Power status, chose to conceal Onaikai. He spent centuries attempting to harness Onaikai's latent energy.
Today, most refer to the feldspar block housing Onaikai as the Weathermaker. A select number of Griddrir's storm giant shamans are permitted near this altar at the heart of a remote Temple to Talos. This temple is known as Ottaki, a name derived from the demon imprisoned within.