MetalWings

Metalwings are actually a group of nightwings that were banished from Pyrrhia over 2000 years ago. They managed to survive just barely and escaped to a third continent. Most of them were gravely injured and as a result had to be made part cyborg. There is an abundance of metal on the third continent which they tinker with all the time to make extremely dangerous weapons. They have been in hiding for a long time waiting for the perfect moment to strike on the other tribes.

King Shadowbolt

King Shadowbolt is the descendent of one of Queen Vigilance's brother's. He was banished for attempting to overthrow her and take the throne for himself. This happened a decade before Darkstalker was born and tried to overthrow her himself. King Shadowbolt is greedy and power hungry, and will stop at nothing to get what he wants. He decided to take over the two other continents, and threatened to time travel back in time to destroy the bond between the two tribes. His attacks resulted in hundreds of deaths, on both sides of the war. He had his top mechanics make the time travel device so he could destroy the bond and weaken them so it would be easier to defeat them.