Toxapex crawls along the ocean floor on its 12 legs. It leaves a trail of Corsola bits scattered in its wake.
– Pokémon Sun Pokédex
Toxapex is one of the few gen 7 Pokemon not revealed prior to the game’s release. I evolved Mareanie to find out for myself what it looks like. Even though its shell got bigger as it evolved, its actual body seems smaller than Mareanie’s. Its body kind of reminds me of a Shuppet.
Toxapex has a signature move, Baneful Bunker, which is like Protect, except it also poisons the attacker if the attack used a contact move. I used a Toxapex in my first Sun playthrough, and this move is quite useful, especially in combination with its ability Merciless, to always crit the target once its poisoned.
Stat-wise, it has a LOT of Def and Sp Def, the highest of all Poison types in fact. This means its other stats are pretty low though, it doesn’t have very high attacking stats (though its ability Merciless always critting against Poisoned target helps), and its Speed is only 35 (which is actually slower than Mareanie’s). It’s meant to be a stalling Pokemon, since it can learn Recover, and has the hidden ability Regenerate.