hard to tell. only enemy that ever gives her trouble after she's a noob (which is a good thousand+ times before we first see her anyway) is the same enemy she's trying to beat that won't go down despite being firebombed, hit with a couple hunred RPGs, a train, battleships shooting missiles at it, and a bunch of other crap i don't remember. and is pretty much the strongest thing in the series for most of it. only things stronger are a haxed up Madoka, witch Madoka, and... probably herself at the end heat of the universe. think somewhere in there it threw a skyscraper at her. but yeah, should be tanky. you don't fight berserker anime openings from another universe without being durable.
not that any of that matters since really, time stop and blast it to high hell is her go-to start and finish and ness is pretty much screwed. homura.
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The future must protect the clone's past.
"Maybe it's a tentacle, molesting the planet itself. - Aschen Brodel.