After reading that Session Report of the 4 investigators vs Nyarly I just can't help but recount that experience I had when I ran Scenario 6 with my friends at the Dice Project. As the title suggests, our victory was most owed to Professor Harvey Walters himself!
Before I get too excited in recounting my experience, I'd just like to say beforehand that we aren't that familiar with the true potential or possible godlike potentials of the Professor in our regular games - we normally take him as a tome-reader or a spellcaster, one who can handle encounters in places where there are notorious instances of losing Sanity. But this one completely changed our view - maybe we were just lucky there, or maybe it was just in the hands of an experienced player, but our future league (and even regular) games would involve him in the lineup!
It started with Scenario Six, the one against Shudde M'ell. As early as game setup the Professor was already given an Enchanted Blade. Okay, that seemed good enough to have for a magic-oriented person. His teammates revolved around Diana Stanley, Sister Mary, Kate Winthrop, Jenny Barnes, Wilson Richards, and "Ashcan" Pete. The first Mythos opened a gate in the woods, and out marched a Cthonian and a Byakhee. Without further ado, the Professor went up and hobbled to the gate. Much to our surprise, the Professor, armed with his somewhat-average Enchanted Blade, took down the Cthonian and the Byakhee and entered the other world!
Several turns passed later and the Professor's killing spree went higher and higher, not minding in the slightest that he's squaring up to monsters that regularly take out 2-3 sanity points (which he always fails on horror checks, thereby receiving the discounted sanity loss), just regularly spending turns at the Asylum to refill his sanity. We normally task Jenny Barnes with fund support so the Professor was always kept in check. It was when Sister Mary paid a visit to South Church that our fate turned from the better to the best: She blessed Professor Walters!
After that singular investment that seemed just normal for any fighter to get (we normally treat blessings as supplements and not uber buffs that can completely change the tide) and somewhat easy to lose with an unlucky dice roll, the Professor's kills just went off the chart. Sometimes when monsters appear on streets due to the Mythos he marches straight up to them and decimates the entire lot. Really, we were all surprised as the Professor gathered up monsters in droves and to think throughout the game he never lost his blessing.
The Professor's unworldly skill did give us the chance to clean out the gates and eventually we won with an all-gate closure, with three locations sealed. When we started counting for scores, the monster trophies that everyone else got (summed up) was dwarfed at the single pile of monsters that the Professor collected by himself.
So yes, now we've changed our views: This scholarly, elderly, frail old man isn't someone you ought to mess with. Not even in class.