Bloody Steel Splinter

Give to McCabe at Ward 13 to craft the Blood Draw weapon mod.

Obtain by giving The Red Prince at least three Crimson King Coins when he demands tribute in the Gilded Chambers on Losomn.

Lore

This is your blood. It's not the first time you've seen it of course, but it's not often one holds the reason for their death after the fact.

"The One True King forever remains silent about his indiscretion, due in no small part to its volatile temperament. It would seem that the young prince inherited the worst traits of both sides."