Thought Ruler Archfiend
Synchro Effect Monster
Thought Ruler Archfiend is a Synchro Effect Monster (DARK/Psychic, Level 8) with 2700 ATK / 2300 DEF. First printed in The Duelist Genesis (2008).
- Type
- Synchro Monster
- Attribute
- DARK
- Monster type
- Psychic
- Level
- 8
- ATK / DEF
- 2700 / 2300
- Archetype
- Archfiend
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- Aug 9, 2008
- Printings
- 6
Card text
1 Tuner + 1+ non-Tuner monsters If this card destroys a monster by battle and sends it to the GY: Gain LP equal to that monster's original ATK in the GY. When a Spell/Trap Card is activated that targets 1 Psychic monster (and no other cards) (Quick Effect): You can pay 1000 LP; negate the activation, and if you do, destroy it.
YGOPRODeck card-level price
≈$0.43 lowest USD figure across marketplaces, for no one printing
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.43 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
A high price usually belongs to one short-printed version and can reflect a single seller's asking price. Sold listings show what copies actually went for.
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Printings & rarities
| Set | Set code | Rarity | Release | Price* | Buy |
|---|---|---|---|---|---|
| The Duelist GenesisTDGS-EN044 · Ultimate Rare · Sep 2, 2008 | TDGS-EN044 | Ultimate Rare | Sep 2, 2008 | ~$133.86 1st Edition~$55.28 Unlimited | Buy on TCGplayerSearch eBay |
| The Duelist GenesisTDGS-EN044 · Ultra Rare · Sep 2, 2008 | TDGS-EN044 | Ultra Rare | Sep 2, 2008 | ~$18.16 1st Edition~$9.87 Unlimited | Buy on TCGplayerSearch eBay |
| Duelist League 2 participation cardsDL11-EN014 · Rare · Dec 1, 2010 | DL11-EN014 | Rare | Dec 1, 2010 | ~$14.15YGOPRODeck | Search eBay |
| Duel Terminal 5bDT05-EN088 · Duel Terminal Super Parallel Rare · Sep 29, 2011 | DT05-EN088 | Duel Terminal Super Parallel Rare | Sep 29, 2011 | ~$20.05Limited | Buy on TCGplayerSearch eBay |
| Legendary Collection 5D's Mega PackLC5D-EN233 · Secret Rare · Oct 23, 2014 | LC5D-EN233 | Secret Rare | Oct 23, 2014 | ~$12.581st Edition | Buy on TCGplayerSearch eBay |
| Brothers of LegendBROL-EN070 · Ultra Rare · Dec 2, 2021 | BROL-EN070 | Ultra Rare | Dec 2, 2021 | ~$1.541st 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.
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Thought Ruler Archfiend in other languages
| Japanese | メンタルスフィア・デーモン |
| Korean | 멘탈스피어 데몬 |
| Chinese | 心灵领域恶魔 |
| German | Gedankenherrscher-Erzunterweltler |
| French | Archdémon du Monde Mental |
| Italian | Arcidemone Dominatore dei Pensieri |
| Spanish | Archidemonio Señor de Pensamientos |
| Portuguese | Arquidemônio Senhor dos Pensamentos |
