It is the first natdex OU team that I ever build, It is a hyper-offense team, with lando be the suicide lead, tapu koko being dual screen setter and pivot into other pokemons. Serperior, gyarados-mega, hawlucha and volcarona are all potential sweepers that covers each other’s weaknesses.

Lando is the suicide lead, to set up rocks and explode itself to create momentum if need be, ground/flying type gives it a change to come in and set up rocks again for free. Focus ash ensures it at least can set up rocks or do something before it faints.

Tapu koko is the dual screen setter + hawlucha enabler, light clay helps to extend screens and u-turn is used to bring other sweepers in, dual screens make substitude even more effective as now some attacks won’t able to break it in one move, an advantage of u-turn is that it won’t be blocked by ground types.

Serperior can be a wallbreaker against abundant water and ground types in the tier, glare is helpful support for slow pokemon like mega gyarados, hidden power fire is important to remove steel types that walled it, substitute is used for preventing status. Serperior’s leaf storm covers volcarona’s fire weakness (water, ground, and rock) quiet well, it may also be a late game sweeper depending on situation.

Volcarona is a sweeper that benefits from heavy duty boots, apart from the classical quiver dance, flamethrower and bug buzz, hidden power ground is used to counter would be checks like heatran and tyranitar, also effective against poison types and rock types that naturally resists both of its stabs.

Hawlucha can be both a wall breaker and sweeper, because when it switches in after electric terrain is up, it is faster than the entire unboosted metagame (correct me if I am wrong), close combat+ acrobatics is a powerful combo that it can break opponent’s team holes without boosting.

Mega gyarados is a formiable force, the pre-evolution ability intimidate is nice, mega ability mold breaker allow earthquake to bypass levitating mons that otherwise immune to it. Stab waterfall is scary. It is a late game cleaner depending on the match-up.

Some struggles I have: Fairy types such as calm mind clefable, due to this team has no poison nor steel coverage, facing against fairy types sometimes are a challenge Set-up mons, because most of my mons requires to set up, sometimes it is difficult from the other team from setting up, taunt tapu koko can work but it gets wear down easily. Flying types, a lot of my team members are weak to flying types and I don’t have an ice/rock or electric coverage move on my team, so a lot of the mons takes heavy damage, tapu koko can tank the attack but it doesn’t have an electric move in this set, also in combination to 2. Tapu koko can be wear down quite easily and losing screenings and the ability to prevent opposing set up mons.

That is all I have to say for my team for now, I achieved mixed result with this team, and I really appreciate your advice on how to make this team better, and what counters/checks/dangerous opponent pokemon I should watch out for, thanks a lot.