Goblin King: All My Abilities Were Picked Up

The day I transmigrated as a goblin, I was hunted to a dead end by human adventurers. In despair, I stumbled and fell, just in time to touch a freshly severed human finger. [Contacted Dead Unit: Human Swordsman, randomly drawing abilities...] The cold notification chimed, and I suddenly saw the sword slashing towards my head—wait, I think I know this move too?