Tapu Lele can two hit ko almost everything in the tier with the exception of steel types. As a result, Magnezone can come in and trap most of these checks. The only exception is heatran which is dealt with by Urshifu.

Without resistances, it is hard to overstate just how powerful Tapu Lele is. It was how I won the majority of my games to get to 1700+

Blissey and Landorus are on the team as pivots which can be safely used to bring in your wall breakers. They also spread status in order to wear down bulky Pokémon that might otherwise be a problem.

Finally, Gengar is on the team to serve as a late game cleaner. Many people do not expect focus sash anymore. Gengar can catch many people off guard since ghost is such a strong typing in the current metagame. I used it over Blacephalon since poison helps to deal with fairy types such as tapu fini and clefable. Also, cursed body can occasionally come in handy against a choice user. Gengar might not have been the optimal Pokemon for this role, but it performed surprisingly well and was really fun to use.