Year 1 : Atheon , Crota , Skolas Year 2 : Oryx, The Taken King , Cabal's Emperor Year 3 : Forge of Gods ( Vex ultimate boss ) , Osiris Year 4 : The Nine , Ahamkara (dont know how to write it ) , The Stranger Year 5 : Hive Ultimate Gods , returns of the original ultimate Kell , Cabal ultimate King Year 6 : Frieza Year 7 : Cell and Dr.Gero Year 8 : Buu and Little Buu Year 9 : The Traveler and the Darkness with Xylar Year 10 : The Darkness and God/Satan himself