Deep Sea Sentry
Deep Sea Sentry is a Effect Monster in the Deep Sea archetype, first released in 2020 in Eternity Code. It has 2 printings across 2 sets (Common). The cheapest copy is MP21-EN050 Common at $0.10; the most valuable is ETCO-EN014 Common at $0.15. In the TCG it is currently unlimited (3 copies).
Market price · TCGPlayer
Updated Oct 1, 2026
$0.10 – $0.15
2 printings priced
Type
Sea Serpent
Level
2
ATK
400
DEF
2000
If this card is sent to the GY to activate a WATER monster's effect: You can make your opponent banish 1 card from their hand face-up, until the End Phase. If this card is Special Summoned: You can send the top 2 cards of your Deck to the GY, then target 1 Level 4 or lower WATER monster in your GY, except "Deep Sea Sentry"; add it to your hand. You can only use each effect of "Deep Sea Sentry" once per turn.
Appears in 2 expansions
Printings (2)
| expansion | Code | Rarity | Price | Buy |
|---|---|---|---|---|
| Eternity Code | ETCO-EN014 | Common | $0.15 | |
| 2021 Tin of Ancient Battles | MP21-EN050 | Common | $0.10 |
Deep Sea Sentry: FAQ
How much is Deep Sea Sentry worth?+
Deep Sea Sentry currently sells for $0.10 – $0.15 on TCGPlayer, from $0.10 for MP21-EN050 up to $0.15 for ETCO-EN014. The exact value depends on the printing, rarity, edition and condition — scan the card with YuScan to see the price of your copy.
Which sets was Deep Sea Sentry printed in?+
Deep Sea Sentry appears in 2 sets: Eternity Code, 2021 Tin of Ancient Battles.
Is Deep Sea Sentry legal in tournaments?+
On the current TCG Forbidden & Limited List, Deep Sea Sentry is unlimited (3 copies).
What is the passcode of Deep Sea Sentry?+
The 8-digit passcode printed on Deep Sea Sentry is 45483489.
Deep Sea
Cards →
What is your collection worth?
YuScan identifies any Yu-Gi-Oh! card with your camera and tracks live prices per printing across five marketplaces — so a 1st Edition never gets averaged with an Unlimited.
