Avatar Shift (アバターシフト Abatā Shifuto) is an ability in Kingdom Hearts III. It allows the user to create a double when dodging.
Mechanics
In Kingdom Hearts III, Avatar Shift is a mobility ability exclusive to the Mirage Staff Formchange. While in combat, tilting 
and pressing 
allows Sora to spawn an ethereal copy of himself. Four copies of Sora can be active at a time. No matter what world he is in, the copies will all be of Sora's normal human form.
Learning Avatar Shift
Kingdom Hearts III
- Mirage Staff has Avatar Shift as a default ability.