# Rotom #20/90 — Undaunted

## Summary

Rotom's Poke-POWER let a deck quietly swap its Prize cards, a tricky engine piece that earned it a niche in HeartGold & SoulSilver era lists without ever making it a headline threat. A mid-tier rare in Undaunted, it now draws Gen IV fans and MAHOU completists. At an $11 modelled guide, with 6 copies traded in 30 days, this printing is almost entirely collector premium, since the same card plays for $0.09 out of Surging Sparks; PSA does not split this card’s population by finish, so no gem rate can be read for it.

## Identity

| Field | Value |
| --- | --- |
| Set | Undaunted |
| Number | 20/90 |
| Rarity | Rare |
| Era | HGSS |
| Illustrator | MAHOU |
| Release date | 2010-08-18 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Basic |
| HP | 60 |
| Types | Lightning |
| Ability: Mischievous Trick | Once during your turn (before your attack), you may switch 1 of your face-down Prize cards with the top card of your deck. This power can't be used if Rotom is affected by a Special Condition. |
| Attack: Plasma Arrow | cost Lightning — Choose 1 of your opponent's Pokémon. This attack does 20 damage for each Energy attached to that Pokémon. This attack's damage isn't affected by Weakness or Resistance. |
| Weakness | Darkness ×2 |
| Resistance | Colorless -20 |
| Retreat | 1 |
| Legal | Standard no · Expanded no |
| Pokédex entry | [Rotom #479](https://cardboardalpha.com/pokemon/pokedex/rotom) |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$10.75** (ITEM_MEDIAN; modelled guide price) — as of 2026-11-03
- 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 2026-11-03
- Floor delivered ask: $5.35 — as of 2026-11-03T08:05:48.189Z
- Quant score: 21/100, regime ILLIQUID_UNKNOWN — as of 2026-11-03T08:05:48.189Z — 3 of 11 inputs · 29% weight · -35% confidence

## Provenance

- Catalog — observed 2010-08-18T00:00:00Z, confidence 98%
- Live ask — observed 2026-10-26T07:40:45.147Z, confidence 90%
- Guide price (modelled) — observed 2026-11-03T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-10-26T07:40:43.008Z, confidence 90%
- Confirmed sale — observed 2026-09-02T02:59:09.387Z, confidence 85%
- Inventory count — observed 2026-10-26T07:40:43.008Z, confidence 70%
- Population census — observed 2026-09-09T05:04:30.114Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/undaunted/rotom-20)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Ahgss3-20%3AEN%3ANORMAL~NM)