Okay so I decided to attempt making another hyper offensive team around Megagross and have had moderate success with this one. It's undergone a few changes such as changing up Serperior's set a bit as well as adding Scarf Lando to the team. I've still struggled with it a bit at times but overall I am happy with the direction the team is going. Anyways here is the squad:

Serperior @ Life Orb
Ability: Contrary
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Leaf Storm
- Hidden Power [Fire]
- Dragon Pulse
-
Glare
Serperior pairs really well with Metagross imo so I decided to add it to the team right away. I was running HP Ground for Heatran but the rest of my team deals with it well enough and I had no good answers to Ferrothorn otherwise so changed it back to Fire.

Metagross @ Metagrossite
Ability: Clear Body
EVs: 252 Atk / 4 Def / 252 Spe
Jolly Nature
-
Hammer Arm
- Meteor Mash
- Zen Headbutt
- Ice Punch
The star of the team, pretty simple as to what it does. Running EQ over Hammer Arm as I just prefer it more in general and can hit the majority of the things Hammer Arm hits without taking the speed drop.

Thundurus (M) @ Life Orb
Ability: Prankster
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Thunder Wave
- Nasty Plot
- Thunderbolt
- Hidden Power [Ice]
I've played around with Thundy quite a bit from adding Taunt over NP and running more of a bulkier spread with lefties but this just fits better on HO so I reverted back to my original set.

Landorus-Therian (M) @ Choice Scarf
Ability: Intimidate
EVs: 252 Atk / 4 SpD / 252 Spe
Jolly Nature
- U-turn
- Knock Off
- Earthquake
- Stone Edge
Standard Scarf Landorus here! Great synergy with the team and was what I felt like brought the team together.

Latias (F) @ Life Orb
Ability: Levitate
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Defog
- Draco Meteor
- Psyshock
- Surf
Was considering Latios here but I feel like Latias fits better overall. Added defog just to remove hazards so my LO pokes aren't taking any more unnecessary damage since I have 3 of them on this team. Surf allows me to deal with Heatran effectively.

Azumarill @ Choice Band
Ability: Huge Power
EVs: 248 HP / 252 Atk / 8 SpD
Adamant Nature
- Aqua Jet
- Waterfall
- Play Rough
- Knock Off
I don't think Azu is a great Pokemon in all honesty but fits the team comp well enough. Has moderate bulk and the band set is just pretty powerful in general.