Mistborn · Magic system

Steel Bubble

Also known as Steel Bubble Defense, Steel Bubble Allomancy

Magic system

Invisible Allomantic protective field that pushes away all nearby metal and shrapnel, creating a safe zone around the user during explosive combat; causes nearby metal to vibrate

Type: Magic system
First appears: Book 4 · Ch. 35
Books: 2

The Steel Bubble emerges in The Lost Metal as a sophisticated Allomantic technique that creates an invisible protective field around the user, pushing away metal and shrapnel during explosive combat. This defensive application of Steelpushing demonstrates the evolution of Allomantic combat from simple pushing and pulling to complex, multi-layered defensive strategies. The technique's ability to cause nearby metal to vibrate while maintaining a safe zone represents a significant tactical advancement in Allomantic warfare.

Evolution

BOOK 4The Lost Metal (The Mistborn Saga)
Invisible Allomantic protective field that pushes away all nearby metal and shrapnel, creating a safe zone around the user during explosive combat; causes nearby metal to vibrate
BOOK 7Mistborn 07 - The Lost Metal
Invisible Allomantic field created by Steelpushing that deflects incoming metal objects and causes nearby metal to vibrate