Er, it might not be a control spell exactly, though in the UF version magic may well be involved. Longtime Marvel Dorks like myself will recognise that spiel as the trigger phrase for the Winter Soldier, aka Soviet-era Bucky Barnes. Indeed, that's what Tangut is referring to in her story; the young man is quite clearly Bucky, who (per Marvel canon) was pretty much an action figure with the batteries taken out when his trigger phrase wasn't activated, at least during his Soviet years.

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"She's old, she's lame, she's barren too, // "She's not worth feed or hay, // "But I'll give her this," - he blew smoke at me - // "She was something in her day." -- Garnet Rogers, Small Victory

FiMFiction.net: we might accept blatant porn involving the cast of My Little Pony but as God is my witness we have standards.

On a lighter note: his sudden promotion to Admiral means Corwin Ravenhair may have to deal with an influx of Fog-nanotech versions of ship's cats. This is absolutely vital for the story. Honest.