Ok here goes.
As you can see my minion Otis is well overburdened. I have a BoF on my first minion. Will the extra strength of the BoF, while the first minion is alive, add strength that lowers my minions ENC?
I suspect not since ENC is likely calculated after spells are cast but not subject to intrabattle factors like strength leech from the exbow.
Am I correct in my assumption or do we not know for sure?