To-Shun, Astral Purifier

Flying, Hexproof
{w/u} Tap a target creature you control: create a 2/2 Astral spirit creature token paired to that creature, with Haste, Flying, and "When the creature that this token is paired to becomes untapped or leaves the battlefield, exile this
token". This ability can only be used if To-Shun, Astral Purifier is tapped.