The world tree the source of the nightelves power kills him, the night elves give up there immortality to save the world. The nightelves destroyed the world tree by stacking up the wisps and then launching a huge blast. The worldtree was the place where the Xel Naga created the Night Elves, Sargeras ( Eye of Sargeras ) is/was a Xel Naga himself he created the Legion. These Xel Naga ( not to be confused with Naga's ) are like the gods of warcraft universe, Cenauirs was a demi god the first of the Night elves, archimonde was the Legion's Demi god.
Or were you simply asking did i find the ending strange? umm, no i thought it was awesome but you probably didn't have much idea about warcraft histroy.
Or were you simply asking did i find the ending strange? umm, no i thought it was awesome but you probably didn't have much idea about warcraft histroy.