Stormbreaker behind back
Stormbreaker is the same as the Stormbreaker in Endgame. A lightning ax designed for Thor, but we somehow use it too.
To get Stormbreaker, you need the Thanos Gauntlet. You will need to go to the snap world, then find a red portal with "The End" on top of it. Then, proceed to beat Endgame Thanos. It should be awarded to you after beating him and collecting the Thanos Sword.
Here's a video on how to get it:
https://www.youtube.com/watch?v=gxVJXKVDz4k
Effect Picture
Ability[]
The Stormbreaker once gained, will not be the same one as the one used to fight Endgame Thanos. It will be behind your back, and you will be able to throw stormbreakers which will do damage to people and slow them down, with small electric sparks around them.