Finally kicked my lazy ass for my tank character in eso, here is his story:

Once upon a time in Tamriel, there was a really powerful and evil dragon rulling skies and earth with terror. Some days it happened he was slayed by a courageous warrior. The dragon was so pitiful in his agony that Mara herself came down from the skies to listen at the dragon's last speech. As she is a very merciful god, Mara proposed him a deal ; that he will somedays be reborn but as a human and do nothing but serving the good. The dragon accepted and died peacefully.

Many decades later, as Mara promised, the dragon was reincarnated into a little boy. Discovered as an orphan he was raised by Mara's priests and as he was becoming older, the boy named Placide became a priest himself as well. Also powered by the dragon's might, he trained hard to be a dragon knight warrior, discovering draconic powers that he uses to fight evil. He fights as a tank and wears heavy armor. Placide is a very joyful lad and always wants to help.