| Category | Resources |
| Type | plant |
| Source | natural |
Koil is a vine that flourishes amid the earth motes drifting between the sky-island Gindinâth and the profound Izen'nâth rift below it. This region of Kernsking is known as the Kernsking Koils. The vines possess an astounding tensile strength. The giants of Gindinâth were the first to master the curing of the vines and transform them into ropes of unparalleled strength and durability.
Some vines of this Kernsking Koils are so substantial that they were utilized to construct Griddrir's inaugural skyships. The employment of it as a structural component for these airborne vessels concluded after five years. Regrettably, these koil hulls deteriorated at a significantly faster rate compared to hardwoods. This was an unfortunate circumstance, for despite their extraordinary hardness and featherlight composition, the scarcity of sufficient magical hardeners prevents them from resisting decay.