Guardian Kay'est
Effect Monster
Guardian Kay'est is a Effect Monster (WATER/Sea Serpent, Level 4) with 1000 ATK / 1800 DEF. First printed in Dark Crisis (2003).
- Type
- Effect Monster
- Attribute
- WATER
- Monster type
- Sea Serpent
- Level
- 4
- ATK / DEF
- 1000 / 1800
- Archetype
- Guardian
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- Dec 1, 2003
- Printings
- 4
Card text
Cannot be Summoned unless you control a face-up "Rod of Silence - Kay'est". This card is unaffected by Spell effects and cannot be targeted for attacks, but does not prevent your opponent from attacking you directly.
YGOPRODeck card-level price
≈$0.20 lowest USD figure across marketplaces, for no one printing
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.20 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.
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Printings & rarities
| Set | Set code | Rarity | Release | Price* | Buy |
|---|---|---|---|---|---|
| Dark CrisisDCR-009 · Common · Dec 1, 2003 | DCR-009 | Common | Dec 1, 2003 | ~$0.37 1st Edition~$0.21 Unlimited | Buy on TCGplayerSearch eBay |
| Dark CrisisDCR-EN009 · Common · Dec 1, 2003 | DCR-EN009 | Common | Dec 1, 2003 | - | Buy on TCGplayerSearch eBay |
| Dark Revelation Volume 1DR1-EN171 · Common · Mar 19, 2005 | DR1-EN171 | Common | Mar 19, 2005 | ~$0.29Unlimited | Buy on TCGplayerSearch eBay |
| Legendary Collection 3: Yugi's World Mega PackLCYW-EN133 · Common · Sep 29, 2012 | LCYW-EN133 | Common | Sep 29, 2012 | ~$0.20 1st Edition~$0.24 Unlimited | 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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Guardian Kay'est in other languages
| Japanese | ガーディアン・ケースト |
| Korean | 가디언 케이스트 |
| German | Wächter von Kay'est |
| French | Gardien Kay'est |
| Italian | Guardiano Kay'est |
| Spanish | Guardiana Kay'est |
| Portuguese | Guardião Kay'est |
