no way SJ gives up their first in any trade

SJ doesn't trade a first, and BUF needs a Dman that can play D, they already have a top scoring guy on the back end in Dahlin and another future one in Power

You are insane if you think San Jose is giving up a top 5 oa pick and the best player in the trade for that. My god this is awful

It doesn't make sense for San Jose.

If San Jose trades Karlsson, it will be in a deal where another team assumes most of the risk of Karlsson's contract. Something like the remaining five years of Karlsson's contract for another contract that expires much sooner, or a contract of similar length that has a much lower cap hit.

Karlsson for Skinner doesn't make San Jose better, and doesn't do a lot to help with their cap.