[SET]
name: Grassy Dance
move 1: Swords Dance
move 2: Grassy Glide
move 3: High Horsepower
move 4: Acrobatics / Tera Blast
item: Grassy Seed
tera type: Fire / Rock
ability: Grassy Surge
nature: Adamant
evs: 140 HP / 252 Atk / 12 Def / 92 SpD / 12 Spe
[SET COMMENTS]
* Grassy Seed turns Rillaboom into a bulky late game sweeper, particularly one that can stand up to the dreaded Basculegion!
* **Acrobatics**: Acrobatics pairs excellently with Grassy Seed's instant usage, and is Rillaboom's strongest option into Dragonite if not using Tera Blast.
* **Tera Blast**: If willing to commit to it, Tera Blast is a great option for expanding Rillaboom's shallow offensive coverage.
Tera Types
========
* **Tera Dependency - Medium / High**: Terastallization is often needed to help Rillaboom get going, either by cushioning would-be counters or blowing through key matchups with Tera Blast.
* **Fire**: Tera Fire lets Rillaboom defend against Chien-Pao's and Ogerpon-H's best attacks simultaneously. It also works great next to Grassy Surge, reducing Earthquake's damage back to neutral levels.
* **Rock**: Tera Rock with Tera Blast gives Rillaboom a well-rounded matchup into Dragonite, allowing it to deal super-effective damage while also resisting Extreme Speed. Earthquake is less of a problem too thanks to Grassy Terrain!
* **Ice**: Tera Ice is used offensively with Tera Blast to blindside targets like Dragonite and Landorus-T. While it is lacking defensively, it does still give a useful Ice resistance versus Chien-Pao.
* **Grass**: Tera Grass is a bit more unorthodox, but the boost to Grassy Glide gives Rillaboom more immediate revenge killing power.
EV Spreads
========
* **12 HP EVs and Grassy Seed**: Thanks to the Defense boost from Grassy Seed, it only takes 12 HP EVs to guarantee that non-Terastallized Rillaboom will live Adamant Chien-Pao's Icicle Crash!
* **140 HP / 252 Atk / 12 Def / 92 SpD / 12 Spe**: This EV spread avoids the OHKO from Modest Choice Specs Flutter Mane's Moonblast as well as the 2HKO (or OHKO if Tera Rock) by either Urshifu-formes' Close Combat. The HP EVs help Rillaboom get the most efficient recovery out of Grassy Terrain. Finally, the Speed EVs let Rillaboom outrun paralyzed targets all the way up to Dragapult.
* **12 HP / 244 Atk / 252 Spe**: An offensive spread still works well next to Grassy Seed, and the investment in Speed lets Rillaboom outrun Modest Gholdengo, Adamant Dragonite, and Jolly Breloom.
name: Grassy Dance
move 1: Swords Dance
move 2: Grassy Glide
move 3: High Horsepower
move 4: Acrobatics / Tera Blast
item: Grassy Seed
tera type: Fire / Rock
ability: Grassy Surge
nature: Adamant
evs: 140 HP / 252 Atk / 12 Def / 92 SpD / 12 Spe
[SET COMMENTS]
* Grassy Seed turns Rillaboom into a bulky late game sweeper, particularly one that can stand up to the dreaded Basculegion!
* **Acrobatics**: Acrobatics pairs excellently with Grassy Seed's instant usage, and is Rillaboom's strongest option into Dragonite if not using Tera Blast.
* **Tera Blast**: If willing to commit to it, Tera Blast is a great option for expanding Rillaboom's shallow offensive coverage.
Tera Types
========
* **Tera Dependency - Medium / High**: Terastallization is often needed to help Rillaboom get going, either by cushioning would-be counters or blowing through key matchups with Tera Blast.
* **Fire**: Tera Fire lets Rillaboom defend against Chien-Pao's and Ogerpon-H's best attacks simultaneously. It also works great next to Grassy Surge, reducing Earthquake's damage back to neutral levels.
* **Rock**: Tera Rock with Tera Blast gives Rillaboom a well-rounded matchup into Dragonite, allowing it to deal super-effective damage while also resisting Extreme Speed. Earthquake is less of a problem too thanks to Grassy Terrain!
* **Ice**: Tera Ice is used offensively with Tera Blast to blindside targets like Dragonite and Landorus-T. While it is lacking defensively, it does still give a useful Ice resistance versus Chien-Pao.
* **Grass**: Tera Grass is a bit more unorthodox, but the boost to Grassy Glide gives Rillaboom more immediate revenge killing power.
EV Spreads
========
* **12 HP EVs and Grassy Seed**: Thanks to the Defense boost from Grassy Seed, it only takes 12 HP EVs to guarantee that non-Terastallized Rillaboom will live Adamant Chien-Pao's Icicle Crash!
* **140 HP / 252 Atk / 12 Def / 92 SpD / 12 Spe**: This EV spread avoids the OHKO from Modest Choice Specs Flutter Mane's Moonblast as well as the 2HKO (or OHKO if Tera Rock) by either Urshifu-formes' Close Combat. The HP EVs help Rillaboom get the most efficient recovery out of Grassy Terrain. Finally, the Speed EVs let Rillaboom outrun paralyzed targets all the way up to Dragapult.
* **12 HP / 244 Atk / 252 Spe**: An offensive spread still works well next to Grassy Seed, and the investment in Speed lets Rillaboom outrun Modest Gholdengo, Adamant Dragonite, and Jolly Breloom.
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