Beings of Tash Kalar
The pattern resembles an old chronicler in his scriptorium.
People said pen is mightier than the sword. The chronicler decides who will be remembered as a hero... And if others believe you are a hero, you should act as one - set up for a quest (move).
As you can imagine, chronicler is good for preparing legendary patterns and fulfilling tasks that require upgraded beings. It upgrades any piece and also lets it to move to the required position, killing any enemy common piece that may block it.
Chronicler, including its shape, was also one of the first beings created for the game, but he just upgraded any piece. The ability to move the newly created hero was added later, as the effect was a bit weak for a three-piece pattern common.