Rotom-S

Levitate
The wielder is immune to Ground-type moves.
Type Tier
Electric / Flying NU
Level 100 Statistics (see level 5, 50, 100)
Min- Min Max Max+
HP
50
- 241 304 -
Atk
65
149 166 229 251
Def
107
225 250 313 344
SpA
105
221 246 309 339
SpD
107
225 250 313 344
Spe
86
187 208 271 298

Overview

Sporting a double immunity to Ground-type moves, a great defensive typing, and above average stats, Rotom-S is definitely a threat to watch out for in RU. A combination of Rotom-S's solid Special Attack and Speed make it a deadly sweeper, while access to Trick, Will-O-Wisp, and Pain Split turn it into a great team supporter. Despite its double immunity to Ground-type moves—even a triple immunity with Air Balloon—Rotom-S does have its weaknesses: losing 25% of its health to Stealth Rock doesn't help it as a sweeper nor supporter, and common weaknesses to Rock and Ice make it much harder to compete. Even without its precious Ghost typing, Rotom-S is a formidable threat, and it shouldn't be taken lightly.

Name Item Nature

Support

Leftovers Bold
Moveset EVs
~ Will-O-Wisp
~ Volt Switch / Thunderbolt
~ Air Slash / Hidden Power Ice
~ Pain Split / Substitute
252 HP / 120 Def / 136 Spe

This set attempts to utilize Rotom-S's good defensive stats and usable support movepool to cripple the opponent. The idea is to burn physical attackers, Volt Switch to a counter, and proceed to KO the opponent. Although it doesn't have perfect accuracy, Will-O-Wisp is Rotom-S's best utility move, and paired with Pain Split or Substitute, Rotom-S becomes a decent wall. Volt Switch turns Rotom-S into a useful scout, but Thunderbolt can be used if you prefer more power. Air Slash provides reliable STAB and hits Bulk Up Gallade super effectively, whilst Hidden Power Ice gains perfect type coverage alongside its Electric-type STAB. Pain Split is a semi-reliable recovery move, and it helps Rotom-S take on specially defensive walls such as Clefable. Substitute helps Rotom-S avoid status from the likes of Tangrowth and Clefable, and provides protection from physical attacks such as Stone Edge.

Team Options & Additional Comments >>>
Name Item Nature

Choice

Choice Scarf / Choice Specs Timid / Modest
Moveset EVs
~ Volt Switch / Thunderbolt
~ Air Slash
~ Hidden Power Grass
~ Trick / Thunderbolt
252 SpA / 4 SpD / 252 Spe

This is Rotom-S's obligatory Choice set; a Choice Scarf is used to raise Rotom-S's Speed, while Choice Specs is used to raise its Special Attack. This set performs well against the common Tangrowth and Slowking core in RU, but unfortunately Rotom-S's Stealth Rock weakness combined with constant switching makes it difficult to survive. Volt Switch is the primary move to gain momentum and ease prediction, but Thunderbolt can be used for additional power. Air Slash provides secondary STAB and a means to hit Grass-types super effectively, whilst Hidden Power Grass deals with Quagsire and Rhydon. Trick is used in the final slot to cripple walls, such as Clefable, but Thunderbolt can be used along with Volt Switch in the first slot to deal additional damage.

Team Options & Additional Comments >>>
Name Item Nature

Substitute + Charge Beam

Leftovers Timid
Moveset EVs
~ Substitute
~ Charge Beam
~ Thunderbolt
~ Hidden Power Ice
64 HP / 232 SpA / 212 Spe

The idea behind this set is to create a Substitute on a switch, raise Rotom-S's Special Attack with Charge Beam, and attempt a sweep. While this set is outclassed by its other appliance formes, Rotom-S can boast a better defensive typing and the ability to take on dangerous threats such as Absol. Substitute gives Rotom-S a safety net against status and powerful attacks, while Charge Beam is Rotom-S's boosting move. Thunderbolt provides reliable STAB, and combined with Hidden Power Ice it creates psuedo-BoltBeam coverage, hitting everything in the tier except Magneton, Shedinja, and Lanturn for neutral damage.

Team Options & Additional Comments >>>
Name Item Nature

SubSplit

Life Orb Timid
Moveset EVs
~ Substitute
~ Pain Split
~ Thunderbolt
~ Hidden Power Ice / Air Slash
252 SpA / 4 SpD / 252 Spe

This set acts as a wallbreaker and offensive pivot. The idea is to create Substitutes until Rotom-S's HP is low, then utilize Pain Split to restore its health, in turn weakening the opponent. This works especially well against walls, such as Clefable, as Rotom-S can weaken them into KO range of one of its attacks and finish them off. Another advantage of this set is Rotom-S's great typing and ability to force switches, making it easy to create Substitutes and score free damage. The moveset is pretty self-explanatory; Substitute and Pain Split are used to safeguard Rotom-S from status, weaken the opponent, and keep Rotom-S healthy, while Thunderbolt and Hidden Power Ice provide excellent type coverage. Air Slash can be used over Hidden Power Ice if you prefer a more powerful STAB move, but it loses the super effective hit on Dragon-types.

Team Options & Additional Comments >>>

Other Options

Rotom-S's movepool isn't very impressive, but there are a few viable options left. Sunny Day or Rain Dance can be used to support its teammates, and Rain Dance pairs nicely with Thunder. A dual screens set is plausible, but there are better users of the strategy. Toxic can be used to wear down its counters, but Will-O-Wisp is usually superior. Discharge can be used over Thunderbolt or Volt Switch if you prefer the higher paralysis rate, but it's slightly weaker and may miss out on KOs. Hidden Power Grass can be used to hit Quagsire super effectively, but it doesn't provide any additional coverage outside of that. Shadow Ball hits Ghost-types harder than any of its other moves, but it provides no extra coverage. Rest and Sleep Talk could work in theory, but its Stealth Rock weakness severely hampers it. Finally, Rotom-S can abuse a paraflinch set with Confuse Ray / Discharge / Air Slash / Pain Split, but it's a bit gimmicky.

Checks and Counters

Lanturn and Magneton are two of the best counters to Rotom-S; they both resist Rotom-S's STAB and have access to powerful STAB moves of their own. Lightningrod Manectric is another great choice as it gains a boost from Rotom-S's Electric-type attacks and resists Air Slash. Clefable can take on unboosted Rotom-S, but it faces problems with the SubSplit set. Specially defensive Grass-types, such as Ferroseed and Roselia, can wall sets without Air Slash, but they can't do much to Rotom-S in return. Quagsire and Rhydon beat sets without Hidden Power Grass, but neither of them appreciate a burn from Will-O-Wisp. Pokemon with Rock Blast can defeat sets with Substitute; Rhydon, Cinccino, and Crustle are great choices. Altaria can take on most sets without Hidden Power Ice, while Natural Cure and Roost keep it healthy and free from status. Heal Bell users can cure paralysis or a burn, making Miltank, Clefable, and Altaria decent checks. Keeping Stealth Rock on the field will wear down Rotom-S, so Ghost-types, such as Spiritomb, can be used to block Rapid Spin attempts.