Roselia @ Eviolite  
Ability: Natural Cure  
EVs: 252 HP / 148 Def / 108 SpD  
Calm Nature  
IVs: 0 Atk  
- Spikes / Toxic Spikes
- Sludge Bomb  
- Giga Drain  
- Synthesis / Rest

Roselia @ Eviolite  
Ability: Natural Cure  
EVs: 40 HP / 252 SpA / 216 Spe  
Modest Nature  
IVs: 0 Atk  
- Spikes / Toxic Spikes
- Sleep Powder  
- Leaf Storm  
- Sludge Bomb  

Additional Moves: Hidden Power Fighting, Aromatherapy, Leech Seed, Stun Spore
Notes: Roselia's good defensive typing coupled with an Eviolite allows it to perform as a decent wall. It has access to both Spikes and Toxic Spikes and due to it being a grounded Poison-type, it also removes opposing toxic spikes upon switch in. Sleep Powder lets it cripple foes and it has a usable 100 base Special Attack, allowing it to fire off powerful STAB options in Leaf Storm / Giga Drain and Sludge Bomb. 216 speed Ev's lets offensive variants outpace neutral max speed base 60's while 148 defence Ev's allows defensive variants to always live a Psyshock from Specs Golduck after Stealth Rocks.