Zekrom

With a monstrously high base 150 Attack stat, combined with powerful and complementary Electric- and Dragon-type STAB moves, Zekrom has the power to devastate many teams. Zekrom's signature move, Bolt Strike, will leave enormous dents in even those who resist it, and forces people to run a Ground-type Pokemon or a very bulky Electric-type resistor in their teams. Even then, they will have to tread carefully against its extremely powerful Dragon-type STAB moves. While Zekrom does not have much to offer defensively, it is an excellent check to Ho-Oh and defensive Kyogre due to its resistances to Fire-, Flying-, and Water-type moves. However, Zekrom does have notable flaws in its rather middling Speed, common weaknesses, an almost useless ability, and a very limited movepool. Regardless, Zekrom's incredible strength is definitely something to watch out for.