Spending so much time near Moloch corrupted Merlin's mind, he became mad with the idea that Moloch is the one true deity and he came to Maar to protect the people from a wave of dragons coming to from the west.
Merlin is an old elf, who spent his life studying the arts of illusion, training to become a master.
He was working for Young family for a long time, until he found out that the head of the family is practicing a corrupted magic. He stole the pages that contained the corrupted magic from the spellbook and escaped to Maar, starting a new life in the Order of the Gauntlet, slowly rising through the ranks, Merlin became the leader of the Order.
On the year 1296 he got a message from Khan, requesting aid in a battle against demons, being the leader of the Order, Merlin immediately answer the call and led a force of Gauntlet members to aid in the war.
During the battle of Gath, Merlin was kidnapped by Moloch, never to be seen again.