I'm sure most of us here have underestimated a certain Pokémon species at least once, either ones we've faced expecting them to be little effort to beat only for them to turn around and smash your face in, or ones we have used ourselves expecting them to be somewhat niche and situational or just using the species because we like it, only for that Pokemon to quickly become the MVP of the team.
While I have come to learn that almost any Pokémon can be potent in the right hands, I clearly hadn't learned enough and grossly underestimated the Raichu on my doubles team, expecting it to be a niche, situational gimmick Pokemon to support the rest of the team. I was quite shocked when it ended up becoming the backbone of the first team I used it with due to the level of control and disruption it offered, and I've not made a doubles team without that Raichu since.
So, which underestimated and underappreciated 'Mons have managed to surpass your expectations?
While I have come to learn that almost any Pokémon can be potent in the right hands, I clearly hadn't learned enough and grossly underestimated the Raichu on my doubles team, expecting it to be a niche, situational gimmick Pokemon to support the rest of the team. I was quite shocked when it ended up becoming the backbone of the first team I used it with due to the level of control and disruption it offered, and I've not made a doubles team without that Raichu since.
So, which underestimated and underappreciated 'Mons have managed to surpass your expectations?