The following characters, lore and events are non-canon in Dragon Age and exist only within the Dragon Age tabletop RPG.
In the Dragon Age (tabletop RPG), the Maetashear War Axe is available as a "permanent magic item" reward for player characters. The axe is one of the most powerful weapons available in the game.
“A truly enormous weapon, this two-handed axe was forged from two silverite polearms. Its blades are covered in ancient Tevinterrunes that tell the myth of how the Fade was cut apart from the world of men.”