Manatarqua
Manatarqua was a young and unexperienced planeswalker. She was one of the planeswalkers encountered by Urza and she took a part in a congregation on Gastal. In fear of being an easy target for predatory planeswalkers, Manatarqua hid herself in the form of objects. During the gathering on Gastal she chose the form of a pavilion, where all the other participants met. When Urza decided to leave them, some force (probably another planeswalker) attacked the group, sending a sun-hot fireball onto the pavilion. Manatarqua, and her spellsquire died consumed by the blast. Other planeswalkers most likely managed to escape.