Archeops

Unlike the large majority of the Pokemon of the fifth generation, Archeops has phenomenal stats that fit its role well. With Attack that approaches overkill, Speed that is uncannily high for a Rock-type, high Special Attack, and a fantastic offensive typing, Archeops is well-suited for its role as a sweeper. Its movepool, while not expansive, provides nearly perfect coverage with the "EdgeQuake" combination. Looking at Archeops, it is evident that Game Freak earnestly tried to make a speedy, menacing Rock-type sweeper. However, they may have overestimated its strength. Archeops's great power is very cruelly balanced out by its ability, Defeatist. Whenever Archeops loses more than half of its health, its ability halves its attacking stats and effectively neuters it for the rest of the match. A weakness to Stealth Rock and lack of any resistances to the most common priority moves in the tier only serve to compound the issues that Defeatist creates. Nevertheless, even with its debilitating ability, Archeops can succeed in UU by sheer offensive might.