ATTACK: 400
DEFENSE: 2000
ATTRIBUTE: WATER
CARD TYPE: Effect Monster
DESCRIPTION: 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.
MONSTERTYPE: Sea Serpent

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PRICE FAQ

What is Deep Sea Sentry (2021 Tin of Ancient Battles) worth today?

Deep Sea Sentry [1st Edition] has a TCGplayer market price of $0.10 as of 2026-09-17.

What is the all-time high price for Deep Sea Sentry?

In TickerMint's daily data (since September 2026), the all-time high market price for Deep Sea Sentry [1st Edition] is $0.10 (2026-09-16) and the all-time low is $0.10 (2026-09-16).

What would a seller actually net for Deep Sea Sentry?

The TickerMint Estimate for Deep Sea Sentry is $0.10. It is a fee-adjusted fair value blending TCGplayer and eBay data to estimate what a seller nets after marketplace fees.

how these numbers are computed →

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