# Mewtwo #XY100 — XY Black Star Promos

## Summary

Mewtwo is the Gen I Psychic that fans have never stopped loving, and a Black Star Promo means it came through events and giveaways rather than packs, so supply was never a pull-rate question. That mix of everlasting popularity and promo scarcity keeps demand steady. At a $33 modelled guide, with 15 copies traded in 30 days, this printing is almost entirely collector premium, since the same card plays for $0.56 out of Stellar Crown; the slab is the real edge, with PSA 10s at $366 and a 2% observed gem rate putting about $240 of expected profit per submission.

## Identity

| Field | Value |
| --- | --- |
| Set | XY Black Star Promos |
| Number | XY100 |
| Rarity | Promo |
| Era | XY |
| Illustrator | match |
| Release date | 2013-10-12 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | POKEMON |
| Stage | Basic |
| HP | 120 |
| Types | Psychic |
| Attack: Psy Bolt | cost Psychic/Colorless — damage 20 — Flip a coin. If heads, your opponent's Active Pokémon is now Paralyzed. |
| Weakness | Psychic ×2 |
| Retreat | 2 |
| Legal | Standard no · Expanded yes |
| Pokédex entry | [Mewtwo #150](https://cardboardalpha.com/pokemon/pokedex/mewtwo) |
| Finishes | Normal |
| Languages | EN |

## Current stats

- Headline price: **$33.19** (ITEM_MEDIAN; modelled guide price) — as of 2026-10-22T03:28:25.399Z
- 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 2026-10-22T03:28:25.399Z
- Floor delivered ask: unavailable (no depth coverage).
- Quant score: 74/100, regime ILLIQUID_UNKNOWN — as of 2026-10-22T03:28:25.399Z — 2 of 11 inputs · 13% weight · -35% confidence

## Provenance

- Catalog — observed 2013-10-12T00:00:00Z, confidence 98%
- Guide price (modelled) — observed 2026-10-21T00:00:00.000Z, confidence 90%
- Inventory count — observed 2026-09-12T04:41:31.267Z, confidence 70%
- Population census — observed 2026-10-12T12:43:27.604Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/xy-black-star-promos/mewtwo-xy100)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Axyp-XY100%3AEN%3ANORMAL~NM)