The most unique aspect of this spell is that it uses Life Dice as the standard of measurement, not Spellcasting Level or other Attribute requirements. This means that even warriors, as long as they have the matching Life Dice, can be granted this spell-like ability. Take the minimal requirement of six Life Dice; even in the wilderness, they can pave a road of cypress oil that is six meters wide and ten meters long in a single go.
If it's just one person, the effect is indeed mediocre, but what if a hundred people, a thousand people work together?
Moreover, directly paving a path in the wilderness is the dumbest method. For something like the Conqueror Path, one should first outline it with manpower and then cast the Road Paving Spell on this path to maximize the spell's power to its extreme.
