Vitrified knot
Tied in something that burned, and the heat kept the shape after the rope was gone.
Vendor trash. Nothing in the game wants it: no recipe, no enchant, nothing to wear. Stacks in one inventory slot. Vendors pay 1213 coins for it.
What drops it
Magma shade
1 in 5
Rolled on its own rather than from the loot table, so it takes nothing away from anything else that falls off it.
What it trades for
No trades in the last 30 days.