bill ferny might be a great alternative to men will fall.
That's right, but keep in mind
Bill Ferny SSF has 2 clear drawbacks: it's predictable and may be killed before or during the skirmish. And while
Men Will Fall cannot be played against RB companions, it keeps the surprise factor that, more often than not, will force your opponent to make mistakes. And if you happen to face a completely RB fellowship, you can always ditch those pumps with your Elven Swords
.
My point is: don't replace one with the other. The idea is not to have those 4 card slots of
Men Will Fall in Dethwish's list redistributed between
Men Will Fall and Bill Ferny, but to have more than 4 pumps with those different 2 cards.
That way you can cover more possibilities (RB and UB; surprise and predictable; exploting alternative an RB), and very often pile up one on the other for much better chances of killing.
I would like to point out that you can also pump your men with Library of Orthanc. Could also be a way to stack your multiple copies of Unferth, Grima, Saruman, and take them when you need them.
That's true,
Library of Orthanc can be very powerful with cheap minions like
Men or
Orcs (as it needs to play multiple minions and keep some spare twilight). But has the problem of forcing you to assemble the FP side to be able to work with (or from) the discard pile, using cards like
Fireworks, Barliman,
Greyhame,
Dear Friends or stacking Dwarves.
And that would force this deck to depart too much from its original mechanics. Still possible, and very powerful.