They fight

The two Scarlet Witches looked at each other in shock. No one should know about this cottage, no one should know she was here. This was a place for her to relax, away from the other heroes that would judge her, and somehow she wasn't alone in this sanctuary. And it was invaded by someone who pretended to be her.

"HOW DARE YOU!" Wanda floated into the air, hands and eyes glowing with red chaos magic. Her double seemed to completely mirror her, even speaking at the same time as her, which only enraged her more.

"YOU PURPOSELY SEEK ME OUT AND THEN MOCK ME WITH SUCH A FORM!?" Again the two spoke at the exact same form, only enraging them more. The items in the room started to float in the air as chaos magic started to leak from their pores.

"YOU BITCH!" With a wave of their hands both witches were blasted fifty feet away, ripping through the walls like butter. Their bodies dug through the ground, ripped through the dirt from the sheer **** of the magic.

Wanda felt insulted. This person came to her house and impersonated her, only to then attack her! She shot out of the ground and back to her house, coming into contact with the other Scarlet Witch right in front of her. The clash of chaotic magical forces ripped the cottage apart from its hinges, leaving no remains of it behind.

The two flinched for a moment, only to blast each other with intensely concentrated beams of chaos magic. The magic built up between them, slowly forming into a large red orb of chaotic energy between them. The two pushed and pushed as much magic into the orb as possible, both attempting to send the magical culmination in the other's way. The magical orb surged, rippling and pulsating as it clearly couldn't take all of the magic, and before long it popped.

The burst sent a wave of reality altering chaos magic all across the world, completely changing reality in a way that the Wandas didn't intend.