Stakataka is a Rock & Steel type, which honestly is a pretty boring type combination, also not great of a typing by any means with having 4x weaknesses to both ground and fighting. As well, the design of Stakataka isn't all that exciting, but again the Ultra Beast designs are meant to be a bit more offputting/weird. However, Stakataka is pretty great in battles, with the Beast Boost ability, to it's decent movepool, but where it shines most is with its stats, it's fairly defensive, but can be offensive too in right situations. Overall, Stakataka is alright, but nothing really that redeems it enough to make it past the others that remain.