# Rillaboom #014/202 — Sword & Shield

## Summary

Rillaboom is the Galar Grass starter's final form, and its energy-accelerating Ability gave Grass decks real fuel back when the format was young. As a mid-tier holo in the opening Sword & Shield set, it draws starter fans and Anesaki Dynamic completists more than speculators. A $0.28 modelled guide, flat over 30 days on 13 copies traded, says bulk, with 260 days of inventory on the board, and the economics stop there: PSA does not split this card’s population by finish, so no gem rate can be read for it, and the same card plays for $0.16 out of Twilight Masquerade.

## Identity

| Field | Value |
| --- | --- |
| Set | Sword & Shield |
| Number | 014/202 |
| Rarity | Holo Rare |
| Era | SWSH |
| Illustrator | Anesaki Dynamic |
| Release date | 2020-02-07 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Stage2 |
| Evolves from | Thwackey |
| HP | 170 |
| Types | Grass |
| Ability: Voltage Beat | Once during your turn, you may search your deck for up to 2 Grass Energy cards and attach them to 1 of your Pokémon. Then, shuffle your deck. |
| Attack: Hammer In | cost Grass/Grass/Grass/Colorless — damage 140 |
| Weakness | Fire ×2 |
| Retreat | 3 |
| Regulation mark | D |
| Legal | Standard no · Expanded yes |
| Pokédex entry | [Rillaboom #812](https://cardboardalpha.com/pokemon/pokedex/rillaboom) |
| Finishes | Holo, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$0.28** (ITEM_MEDIAN; modelled guide price) — as of 2026-11-02
- Headline basis: MODELLED_GUIDE — The venue’s published daily market guide, which the venue itself declares MODELLED. Nothing is confirmed to have traded at it, no copy is listed at it, and it is not our estimate — it is theirs.
- 24h change: n/a · 7d change: n/a — as of 2026-11-02
- Floor delivered ask: $1.49 — as of 2026-10-17T21:45:02.614Z
- Quant score: 30/100, regime FLOOR_FORMING — as of 2026-11-03T05:40:28.373Z — 4 of 11 inputs · 46% weight · -27% confidence

## Provenance

- Catalog — observed 2020-02-07T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-20T18:24:46.709Z, confidence 90%
- Guide price (modelled) — observed 2026-11-02T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-18T22:29:31.615Z, confidence 90%
- Confirmed sale — observed 2026-10-18T20:22:37.150Z, confidence 85%
- Inventory count — observed 2026-10-18T22:29:31.614Z, confidence 70%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/sword-shield/rillaboom-14)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Aswsh1-14%3AEN%3AHOLO~NM)