Forging the Blade of Black Vengeance

Oh Ethan.
This isn’t something I’ve ever considered, and usually the phrase is “quenched in the blood of my enemies” but I enjoy a good jaunt down the theoretical forging of blades, so let’s do some math.
There is about 5 grams of iron in an average male body. The average sword is between 1-2kg of iron (average being very loosely defined here) and so we can use 1.5kg as our mean for discussion. Thus, we need 1500 grams of iron.  So, the numbers would totally work if that were the only figu...