I've played Red discard for a long time, and you're darn right in focusing in the
Orc Warrior. He is the most cost-effective discard card for Sauron. But you need to FEED the Warrior, which means plenty of conditions that you are not afraid to destroy: 4
DDOTR, 4 His Cruelty, and I like 2
Spies of Mordor (cheap, easy to get out, expendable, helps your hand, discourages a double move).
I don't like
Tower of Barad-Dur--too expensive to be consistent, and then not enough bang for your buck--so I would drop those. I would add 1
The Irresistible Shadow. I would replace Ambushers for Orc Assasins--these actually might stick around if they have hobbitses.
I love
Desperate Measures but never have enough TL to pull it off 3x, so I would drop at least one for the standard
Enquea LoM, who will own if they let burdens stack.
Shadows Reach? Discard /a/ condition? Discarding's what this deck does best, so I think that's unnecessary. That will trim your deck count.
For the Freeps, no comment, as I only ever play Dwarf/Elf discard with
Durin's Secret. Gimli stacking a couple
NTAD and a couple rounds of White Arrows is almost enough in and of itself.
Everyone's right in saying discard can be outsmarted (but when people start playing
Old Noakes you can just play your Tower Assassins...). But a finely tuned discard deck, one that maximizes every ounce of twilight is much harder to beat, so stay with it!