Cole's Penumbral Pillar

You create a pillar of pure darkness that solidifies into a rock. Choose a space within 5ft and fill up to a 10ft cube with shadow cover. Darkness permeates from the pillar for up to 10ft all around the structure. This pillar will dissipate after one hour or until it is dismissed. This solidified shadow acts as a solid column and can provide cover to anyone stood behind it.

The darkness around the pillar can be seen through by a shadow sorcerer and is treated in the same way as Eyes of the Dark if cast with metamagic.