Kraj, repurposed

At the beginning of your upkeep, unattach Kraj, repurposed from the permanent it is symbiosed
with.
Hexproof, reach, vigilance
Symbiosis — {u}{g/w}{t}: attach Kraj, repurposed to
target permanent.
Attached permanent gain reach and vigilance if
it is a creature. Otherwise it gain hexproof and indestructible.