It is possible that Armsmaster’s relevance in the Interlude was a mix of misdirection and natural result of the focus on the PRT, but I doubt it.
For one thing, assuming Armsmaster has his armor and especially his Halberd, Amy is way easier prey. Armsmaster is way more likely to actually stay alive from Cherish bringing up the prey to the Undersiders heading out.
As long as he hasn’t stopped running to fight her yet, that is.
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