Threadline is a legendary major card out of the New mechanic pool. Skewer thrusts 8 u through 10 bodies and strikes twice per press at 60%; the first-body bonus is gone.

You can take it once · it only turns up when your Main ability can actually use it · it can be offered for 0 of the 34 abilities.

Only one card can reshape that ability this way — this one, or Impaler and Needle. Take one and the rest are gone for the run.