Number 66: Master Key Beetle
Xyz Effect Monster
Number 66: Master Key Beetle is a Xyz Effect Monster (DARK/Insect, Rank 4) with 2500 ATK / 800 DEF. First printed in Judgment of the Light (2013).
- Type
- XYZ Monster
- Attribute
- DARK
- Monster type
- Insect
- Rank
- 4
- ATK / DEF
- 2500 / 800
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- Aug 8, 2013
- Printings
- 3
Card text
2 Level 4 DARK monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 card you control, except this card; while this card is face-up on the field, that card(s) cannot be destroyed by card effects. If this face-up card on the field would be destroyed, you can send one of its targets to the Graveyard instead.
YGOPRODeck card-level price
≈$0.25 lowest USD figure across marketplaces, for no one printing
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.25 on Oct 26, 2026 (historical, not a printing-specific quote). It varies with printing, condition, edition, rarity, and grading. Check current listings before buying or selling.
Find a copy
As an Amazon Associate I earn from qualifying purchases. This site also participates in the eBay Partner Network and other affiliate programs: marketplace links on this page are affiliate links, and if you buy through them we earn a commission, at no extra cost to you.
Printings & rarities
| Set | Set code | Rarity | Release | Price* | Buy |
|---|---|---|---|---|---|
| Judgment of the LightJOTL-EN054 · Super Rare · Aug 8, 2013 | JOTL-EN054 | Super Rare | Aug 8, 2013 | ~$0.76 1st Edition~$0.71 Unlimited | Buy on TCGplayerSearch eBay |
| 2014 Mega-Tin Mega PackMP14-EN099 · Super Rare · Aug 28, 2014 | MP14-EN099 | Super Rare | Aug 28, 2014 | ~$0.791st Edition | Buy on TCGplayerSearch eBay |
| Wing RaidersWIRA-EN045 · Common · Feb 11, 2016 | WIRA-EN045 | Common | Feb 11, 2016 | ~$0.291st Edition | Buy on TCGplayerSearch eBay |
*Approximate price hints, not appraisals. A price with a finish (1st Edition, Unlimited, Limited) is TCGplayer's for that set code, rarity and finish, via TCGCSV, updated Oct 26, 2026. A price marked YGOPRODeck is YGOPRODeck's figure for that printing. A dash means that printing has no price yet. Buy links are affiliate links.
Price hint history
Dated YGOPRODeck snapshots. These hints are not sales or market values.
Loading price history…
Number 66: Master Key Beetle in other languages
| Japanese | No.66 覇鍵甲虫マスター・キー・ビートル |
| Korean | No.66 패건갑충 마스터 키 비틀 |
| German | Nummer 66: Generalschlüssel-Käfer |
| French | Numéro 66 : Maître Scarabée Clé |
| Italian | Numero 66: Scarabeo Maestro delle Chiavi |
| Spanish | Número 66: Escarabajo Llave Maestra |
| Portuguese | Número 66: Besouro Chave Mestra |