To complete this offensive team, it really needs a Scarfer or some more priority, as it's a bit slow at the moment. Additionally, a Defiant pokemon to protect Rampardos's Stealth Rock and Quilladin's Spikes would also be a decent choice. At the same time, what I'm seeing here is that Electrode is using Aftermath over Soundproof, implying that the last Pokemon is able to be used as an answer to Chatot's Boomburst. And, given we have a Rock-type in Rampardos already, I might be able to assume that it's a Ghost-type meant to spinblock and take Boombursts (that doesn't mean Rampardos takes Chatot's Boombursts, though). Then, with the lack of Speed here, our potential last could either be Unburden Drifblim or double priority Dusknoir (Scarf Haunter would fit here perfectly, RiP).
Bongo Bongo (Dusknoir) @ Life Orb
Ability: Pressure
EVs: 212 HP / 252 Atk / 44 Spe
Adamant Nature
- Ice Punch / Pursuit
- Sucker Punch
- Shadow Sneak
- Earthquake
Dusknoir's Speed that it can run is variable here: you can run it faster than Defensive Relicanth / Vullaby / Roselia in order to get an Earthquake or an Ice Punch off, but the idea of this nom is the same. With Cryogonal checking Quilladin and Special Floatzel (if at full, Cryo can take a LO Focus Blast), it makes sense to have a spinblocker that can also beat Cryogonal and protect this team's hazards. That makes Pursuit a nice option, but if you go that route, you are then walled by Vullaby, so I slashed Ice Punch with Pursuit. Ice Punch gives you a second check to Altaria, which is nice for Monferno. The priority really helps against boosted threats, but Shadow Sneak by itself is not enough, so LO is better than just CB Ssneak here. LO Sucker Punch hits faster Normal-types, including, but not limited to Sand Stoutland, Scarf Sawsbuck, Scarf Dodrio, Purugly, etc. So, with Monferno's Mach Punch, these Normal-types are handled soundly for the most part if you use Dusknoir here, which is perfect for an HO team that doesn't have a real resist to Normal STABs.