Guardian Kay'est
Sea Serpent / Effect
WATER / 
4Cannot 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.
1000/1800
CARD ID: 09633505
STATUS TCG: Unlimited
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| TCG Set | Symbol | Rarity | Low | Avg | Trend | |
|---|---|---|---|---|---|---|
| Dark Crisis | DCR-009 | Common | -,--€ | -,--€ | -,--€ | |
| Dark Crisis | DCR-EN009 | Common | -,--€ | -,--€ | -,--€ | |
| Dark Revelation Volume 1 | DR1-EN171 | Common | -,--€ | -,--€ | -,--€ | |
| Legendary Collection 3: Yugi's World Mega Pack | LCYW-EN133 | Common | -,--€ | -,--€ | -,--€ |
This monster's silhouette appears in the artwork of Guardian Formation.
Rod of Silence - Kay'est appears in this card's artwork (not only being wielded, but also as a design on the neckline of this monster's tank top).
This card shares both of its on-field effects with The Legendary Fisherman, but instead of requiring a specific card to be on the field, Guardian Kay'est instead has Summoning restrictions.
In the anime, this is the only Guardian monster that was never re-equipped with corresponding Equip Spell Card, Rod of Silence - Kay'est, by Rafael through Backup Gardna. This is due to the fact that, unlike the other Guardian monsters, Kay'est doesn't benefit from the her corresponding Equip Card due to her own effect.
Rod of Silence - Kay'est appears in this card's artwork (not only being wielded, but also as a design on the neckline of this monster's tank top).
This card shares both of its on-field effects with The Legendary Fisherman, but instead of requiring a specific card to be on the field, Guardian Kay'est instead has Summoning restrictions.
In the anime, this is the only Guardian monster that was never re-equipped with corresponding Equip Spell Card, Rod of Silence - Kay'est, by Rafael through Backup Gardna. This is due to the fact that, unlike the other Guardian monsters, Kay'est doesn't benefit from the her corresponding Equip Card due to her own effect.
Previously Official Rulings
"Guardian Kay'est" is not affected by Spell Cards, just like "The Legendary Fisherman".
Your opponent cannot select "Guardian Kay'est" as the target of an attack.
If "Guardian Kay'est" is your only monster on the field, your opponent can attack your Life Points directly.
As long as "Guardian Kay'est" cannot be selected as the target of an attack, it cannot be targeted by the effect of "Staunch Defender", either.
If "Guardian Kay'est" and another monster are targeted for "Different Dimension Gate", only the other monster is removed from play and returns when "Different Dimension Gate" is destroyed.
If "Guardian Kay'est" and another monster are selected for "Creature Swap"s effect, "Creature Swap"s effect is negated because switching is impossible.
Adhesive Explosion: If this face-down card is attacked by “Guardian Kay’est”, it will still be equipped to the attacker, but it will not destroy the equipped monster during the Standby Phase.
Different Dimension Gate: When you select "Guardian Kay'est"as a target of Different Dimension Gate, only the other monster is removed and returns to the field when "Different Dimension Gate" is destroyed.
Staunch Defender: You cannot select "Guardian Kay'est"for "Staunch Defender" if they cannot be attacked.
The Agent of Force - Mars: "The Agent of Force - Mars" is unaffected by Spell Cards just like "Guardian Kay'est" and "The Legendary Fisherman".
Guardian Rulings
{{:Card Rulings:Guardian