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Sounds like a variation of Cannibalism Superpower
Yeah, kinda. Now that I think about it, Kirby (one of the preeminent examples of Cannibalism Superpower, and featured in the article image) has a Pocket Dimension within his body where all that he devours go to, rather than being digested or otherwise broken down by his body. Guess the trope doesn't necessarily require that the "eating" also involve digestion/breaking down of the eaten entity.
Fiat iustitia, et pereat mundus.Equippable Ally, maybe?
My name is Freezer and my anti-drug is porn.Doesn't that stretch the meaning of "equippable" too much?
Fiat iustitia, et pereat mundus.
In Super Dreadnought Girl 4946, it's discovered that the female lead Mana — who is the Giant Woman referenced in the manga's title — can boost her power greatly by swallowing whole the male lead Tobita; once the power is no longer needed, she would then vomit Tobita out (ostensibly to avoid killing him, but it's quickly revealed to us readers through another character that Tobita was bluffing the whole "I'll survive if it's only three minutes" thing he told Mana to trick her into thinking doing this is fine (i.e. he was trying to pull a Heroic Sacrifice) and he should've died instantly, so the implied time limit may very well be non-applicable and she could indefinitely hold him inside her stomach (or wherever he ends up; apparently he loses consciousness once he goes past her throat)).
This is obviously not Fusion Dance, because the two characters remain physically separate throughout the whole process. So... what trope applies to this kind of power-boosting?
Edited by MarqFJA