As stated before Apocalypse's durability is a hoax.
The High Lord is always looking to regrow a body, steal one or rejuvenate a rotting one.
In a Long Drawn out fight Nur's body will Fail him.
Pocc's got great willpower but that won't help him against a sub orbital adversary moving at superhuman speed who can jam his teleport frequency [Apocalypse's teleportation is tech based]
From the ground Poc's offense is the Familiar gundarm. Easy to defend against from high altitude.
Taking to the air would hasten Poc's defeat.
Storm at Regular Strength can drive straw through steel plate with winds generated from feeble ground air currents.
From Altitude Psi generated is enhanced. [A Jet Stream has more kinetic energy than a gentle Breeze]
Given Poc's durability issues A head on collision with Solar Wind = Time out in a rejuve apparatus