Molding Earth
From the moment they arrived at the edge of the Cursed Grounds, Izroth had been closely examining the land with his Energy Vision Sense.
He soon discovered that while the earth within the Cursed Grounds was heavily tainted, if one were to dig almost fifty meters down, they would find no trace of the harmful miasma.
Of course, digging a hole fifty meters deep by hand was out of the question. And, even if one could dig it by hand, there was still the matter of stability to take into consideration, as well as the absence of a light source underground.
If one simply tried to dig without a proper plan at such depths, it would not take long for the earth to collapse and cave in on them, ultimately burying them alive in endless darkness.