Loryarlotep tires of the Titans' boring children.
His world was beautiful. Life everywhere, singing through his veins. As he moves through jungles and forests and plains land, watching over his dear children he feels disturbance. The titans have come to his world and they have children of their own they leave, horrid stone things, dull and flat, none of the great change and vibrant life that characterized his own children. Loryarlotep would pity them if they were any less pawns of the titan's scheming. As it were they were…boring, but he was the life of Azeroth, and if they wished to live on Azeroth they would follow the rules he set, or they would not live. In power and will and bright desire he curled around them all and changed them to suit himself. None of that dull stone now, flesh and blood and bones, to break and change and flourish, if they pleased him.
Notes: Basically, Loryarlotep casts 'Curse of Flesh', it's super effective.