Magcargo

Magcargo really is a mixed bag of pros and cons. It sports a very bad array of weaknesses to Fighting-, Rock-, Ground-, and Water-type attacks, but a Rock weakness is a nice trade for a Grass neutrality overall compared to the other Rock-types in the tier. On top of that, Magcargo also has a resistance to Ice, which, combined with a decent Special Defense stat, really sets it apart from the other Rock-types in the tier. Unfortunately, its Attack stat is abysmal, meaning it can't really make use of its Rock STAB or access to Self-Destruct to the fullest. That said, its Special Attack is above average, and its STAB Fire Blast will hurt a lot of the tier. It's also extremely slow, even being outsped by the other Rock-types in the tier, therefore making it easy to revenge kill. Magcargo shines on teams that can make use of its mixed defenses and ability Flame Body to wall special attackers like Flareon and physical Normal-types like Pidgeot and Raticate; just be mindful of its snail's pace when using it.