Volt-Turn Bulky Offense with some Innovation in it; I started the teambuilding process with Mega Ampharos as it is a good Volt-Switch user, the Dual typing is pretty good
and its has good coverage option in Focus Blast to hit steel types it can't hit super effectively otherwise.
Next Member is Tsareena with Choice Band + Adamant Nature to have the maximum power from its good Attack stat. Its coverage options are Knock Off and High Jump Kick.
Knock Off in general is a good move, High Jump Kick can also pass Steel types, which try to wall Tsareena and U-Turn gives a strong Momentum.
Metagross is Rocks, Meteor Mash, Earthquake and Thunder-Punch with Electrium Z, Thunder Punch coupled with the Z-Move is able to get past his enemy in Slowbro,
which otherwise is able to wall Metagross. Metagross is Adamant to abuse its good Attack stat.
Slowbro is a fire type check and is able to help against Zygarde 10% which is a huge threat to the team. Scald and Psyshock is the STAB and Ice Beam a strong
coverage option, which functions to get rid off Zygarde10, Flygon, Noivern and can also deal damage to grass types super effectively.
Donphan is another physical bulky option and the metagame trend recently gave it a huge Viability boost so I decided to use it as a Volt-Blocker
because its Ground typing allows it to switch into electric type attacks. Rapid spin is a great option and Earthquake is its STAB,
I gave it Gunk Shot to lure in Grass Types which can catch some opponents by surprise if they aren't prepared for this.
The Scarfer is Gardevoir with Psychic, Moonblast and Shadow Ball - Shadow Ball hits psychic types and ghost types super effectively. Healing Wish can come in handy to give a pokémon a second chance to function again.
https://pokepast.es/44117249c988b4f3