Offensive Eviolite (Roselia) @ Eviolite
Ability: Natural Cure
EVs: 252 SpA / 12 SpD / 244 Spe
Modest Nature
IVs: 0 Atk
- Sleep Powder
- Giga Drain
- Sludge Bomb
- Extrasensory / Synthesis

Speedy Offensive (Roselia) @ Choice Specs/ Poisinium Z/ Grassium Z/ Psychium Z/ Life Orb
Ability: Natural Cure
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Leaf Storm
- Giga Drain
- Sludge Bomb
- Hidden Power [Fire]/ Hidden Power [Ice]/ Extrasensory

Hazard Setter (Roselia) @ Eviolite
Ability: Natural Cure
EVs: 252 HP / 4 SpA / 252 SpD
Calm Nature
IVs: 0 Atk
- Toxic Spikes
- Spikes
- Synthesis
- Sludge Bomb/ Giga Drain/ Extrasensory

Notes: Roselia can function as a variety of different things, but the main things it functions for are wallbreaking and hazard setting. Offensive eviolite serves as a much more bulky wallbreaker. Sleep powder forces non-grass types into a sleep and get some easy damage in on the opposition. Giga Drain both as a means of healing, STAB damage and hitting bulky water types such as Wartortle and Prinplup. Sludge Bomb is another powerful STAB move capable of hitting opposing grass and fairy types hard, even having the slight chance to poison them. Extrasensory is an excellent coverage move, as it is able to hit opposing poison types (not including Grimer-Alola), and opposing fighting types, mainly consisting of Gurdurr and Machoke. Synthesis is another option for quicker healing than Giga Drain. The Speedy Offensive variant is a less bulky version than eviolite but packs a much bigger punch, with access to Choice Specs and Life Orb, all of the moves have a greater power, and, give it a Z-Move to target certain Pokemon and it helps to break them down. For example, Z-Leaf Storm hits a plethora of opposing Pokemon hard with its already large move power. This mainly helps to hit Wartortle and Prinplup. Poisinium Z hits Fairies and Grasses like Togetic, Clefairy, and Servine. Psychium helps to hit bulky poisons and fighting types, such as Gurdurr, Machoke, or Gloom. Finally, there's the Hazard Setter. It does exactly what it sounds it does especially as one of the better spike-setters in the tier having access to both toxic spikes and spikes.

Checks and Counters: Bulky steels, such as Metang take hits from Roselia like paper attempting to cut a rock, even from specs boosted hp Fire. Faster Pokemon, such as Frogadier, Electabuzz, Monferno, Combusken, and others can also serve as counters as these pokemon generally hold moves which can deal significant damage to Eviolite or non-Eviolite Roselia. Opposing Bulky SpD walls can also be a threat, mainly to offensive eviolite as it doesn't have as much firepower as the Speedy Offensive variant. Some Pokemon can also wall that, such as Ferroseed, however it can be easily countered via Hidden Power Fire. This can also include Sliggoo, and at the same time be countered with Hidden Power Ice. Sliggoo, with its bulk, can take too many hits from Hidden Power Ice regardless, so be aware that Roselia could be used as set-up fodder for Sliggoo. Last but not least there is Vigoroth, which can take most of even Speedy Roselia's hits pretty easily without getting OHKO'd. Taunt users are one the biggest threats to Hazard Setting Roselia, as it prevents not only its means of stacking hazards but also its means of healing. Taunt could also pose a small problem for Offensive Eviolite as sleep powder no longer becomes an option.

Other Options: Hidden Power Fire/Ice is an option on the eviolite variants, however, it would not pack that much of a punch and is much more usable on the Speedy Offensive variant as items such as Choice Specs and Life Orb would be able to empower them much more. Stun Spore is also an option as it would help slow down faster opponents. Dazzling Gleam is also an ok coverage option to hit the bulky Dragons a bit harder, as well as hitting Dark switch-ins like Murkrow/Vullaby/Pawniard for ok damage. While it does hit Fighting types for equal damage to Extrasensory, it does not hit the Fire/Fighting types on switch-in, and is a rather weak coverage move in general.