Would Dragon Claw be a good stand in for Fire Punch?
I didn't think to have Zoroark disguised as Roserade, so thank you for that.
I switched around Smeargles move list, taking Shell Smash like you suggested and grabbed Magic Coat instead of SR. I chose to go with Toxic and Roar on Blastoise to keep the accuracy. (I'm not seeing anything with Soundproof or Suction cups..., or is the 90% accuracy the better choice because of the slight damage it deals...?)
Here is the list with the changes, and EV's added.
Ability: Sheer Force
Item: Life Orb
EV's: 252 Atk, 252 Spe, 4 Def
- Flare Blitz
Ability: Own Tempo
Item: Focus Sash
EV's: 252 Hp, 252 Spe, 4 Def
- Shell Smash
- Baton Pass
- Magic Coat
EV's: 252 Sp. Atk, 252 Spe, 4 Sp. Def
- Nasty Plot
- Dark Pulse
Item: Choice Band
EV's: 252 Atk, 252 Spe, 4 Sp. Def
- Dragon Claw / Fire Punch (W/B2)
EV's: 252 Hp, 252 Def, 4 Sp. Def
- Rapid Spin
- Roar/Dragon Tail
Ability: Natural Cure
Item: black Sludge
EV's: 252 HP, 120 Def, 136 Sp. Def
- Giga Drain
- Sludge Bomb
It would be good to put Darmanitan's last 4 EVs into Special Defense so that Porygon2 and Porygon-Z won't get Special Attack boosts via Download.
Max HP isn't good for Smeargle because its bulk isn't optimized. An optimal EV spread would be 80 HP/96 Def/80 SDef/252 Spe.
I think Fire Blast is a good substitute for Fire Punch, but Flygon has to use a Naive nature.
Other than that, the team looks fine.