Corporeal Form

Ascend (If you control ten or more permanents, you
get the city's blessing for the rest of the game.)
At the beginning of each player's end step, that
player chooses a permanent they own, other than
Corporeal Form, and phases it out. If you have
the city's blessing, Corporeal Form phases out at
the beginning of your cleanup step.
Dare we say that that which cannot be seen, heard
nor felt is even alive?