Xintun

Xintun was a Herald of Unicron who served The Fallen. He was killed when he was turned into a Hollow by Ynot and fed to The Fallen, then killed again by SMY after being revived in the UG.

History
Xintun and his brother Xaaron were both under The Fallen's command as Heralds of Unicron. In an attempt to help The Fallen escape from the dimension he was imprisoned in, Xintun tried to trick the rogue Makuta Ynot into entering the dimension so that The Fallen would feed on his power, but failed to convince Ynot to do as he said. As a result, Xintun decided that he would try to feed Ynot to The Fallen by force, and chased him across the universe. Eventually, Xintun finally managed to force Ynot to enter The Fallen's dimension, but when that happened, Ynot used a mask to transform Xintun into a Hollow. Upon seeing his brother's transformation, Xaaron decided that he had no choice but to feed Xintun to his master instead. The Fallen consumed Xintun's body, which empowered him enough to break free from his prison and leave his dimension.

Soon after these events, Blackout used the Vahi Cube to rewind time in the Original Universe by six months, but because Xintun's death occurred outside of the Original Universe, he remained deceased.

In 150,080 CMT, Xintun was briefly resurrected when his soul was drawn into the UG by its resurrection matrix and given a new but identical body. He found himself in close proximity to three other formerly deceased characters: Helryx, Teridax, and Shattered Mirror Ynot. After hearing the announcement that the UG's inhabitants had to work together in pairs to defeat the others and escape, Helryx killed Teridax, which left only her, Xintun and SMY: an odd number. SMY decided that he would rather kill Xintun than have him on his team, so he did so, meaning that Helryx became his partner instead.