King Ailei. In the TV series, King Airei's ability, Thunder Killer's long tail can wrap around his opponent and deliver a million volt electric shock. In Chapter 7 of "Ultraman Zeta", he severely injured Geed. ·Lightning Killer, also known as Thunder Killer, first appeared in Ultraman Geed's TV series, and was formed by merging the monster capsules of King Airei and Ace Killer.