The Scarlet Witch

Real Name:  Wanda Maximoff

The Scarlet Witch is a mutant whose mutant powers affect probabilty.  She is Magneto's daughter.  The image is how she appears in the animated feature "Wolverine & the X-Men", which some consider in the same universe as AEMH, but this was contradicted by events in the AEMH ongoing comic series.

 She is the daughter of Magneto and the sister of Quicksilver.

(Working on an AEMH microhero version from the comic)