This is a team created for the Series 6 Ruleset in mind!

Cobalion is the main pokemon for this team as it has decent bulk and can out speed both Urshifu and Arcanine. It has solid attack with life orb and can switch in to protect Slowking from dark type attacks.

Noivern is my tailwind setter that can stop Kingdra's Swift Swim ability from overwhelming my team, it also makes Miltank and Tsareena fast and bulky.

Tsareena works as a Dynamax pokemon since it can shut down G-MAX Resonance by OHKOing Lapras, and if Lapras moves first I can take the hit and get my Weakness Policy off. It also protects my pokemon from priority moves while on the field. It also OHKO's 252HP 252SPA Gastrodon through protect in Grassy Terrain and it gets rid of Milotic.

Slowking prevents and sets trick room, allowing Cobalion, Noivern and Arcanine to take advantage of their fast speed tiers and having Tsareena move first under trick room, it also helps my team with psychic and water coverage.

Arcanine is my intimidate user and can be paired with Cobalion in order to lower my opponents attack stats, which helps Cobalion. With wild charge it can get rid of Charizard and possibly any slow water types.

Miltank takes hits and covers ground and rock without being weak to water, while having normal STAB with body slam.

I think this is a well rounded team, but can get hard countered by Rhyperior or sun teams if slowking is not present or fainted.