Ruins Magic

Ruins Magic (also known as the Ruins Enhancement or Ruins Generation ) is a legends-exclusive form of support magic generated by Excalibur upon its generated creation by Arthur Pendragon. Originally a magic given to the character by the lore makers, it was made non-canon and so would be converted into the Legends storyline.

Legends: Into the Beginning
Ruins Magic was first used in Legends by Arthur when he was forced to confront Thor during Ragnarök on Midgard.