Large or ranged attacks aren't needed, all you need is a quick, repeatable air attack: due to the combination of their size and the fact that they can still be put into hitstun unlike most oversized boss-type characters, it's easy to perform an infinite combo on them just by spamming the said weak attack while repeatedly jumping towards them. You can also catch all 3 of them into one if you're lucky, and at that point the battle is all but won if you don't screw up the timing too badly.
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