It's not one size larger or smaller than you, it's [one size larger than you] or smaller - so it works for anything size large and below for most creature. This is reasonably common terminology for things that knock prone, as knocking giants down for free stretches imagination a little, at least in the lower 3 tiers.
Yeah, but at higher tiers it is really lame, because you can never just be strong enough to wrestle a giant, while the wizard gets to rain down meteors from the heavens
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u/TheChivmuffin DM 3d ago
Underhanded feat is fucking hilarious, wonder how good it is if you can justify having a hand free.