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. Pressing 
while tilting 
in combat allows Sora to spawn an ethereal copy of himself in the direction he dodges. Four copies of Sora can be active at a time.
Learning Avatar Shift
Kingdom Hearts III
- Mirage Staff has Avatar Shift as a default ability.