Aegaion the Sea Castrum
Aegaion the Sea Castrum is a Xyz Effect Monster, first released in 2016 in Breakers of Shadow. It has 2 printings across 2 sets (Common). The cheapest copy is BOSH-EN055 Common at $0.18; the most valuable is MP16-EN213 Common at $0.20. In the TCG it is currently unlimited (3 copies).
Market price · TCGPlayer
Updated Oct 1, 2026
$0.18 – $0.20
2 printings priced
Type
Machine
Rank
8
ATK
0
DEF
3000
2 Level 8 monsters During either player's turn: You can banish 1 random face-down monster from your opponent's Extra Deck, face-up, and if you do, this card's ATK becomes equal to the banished monster's. During either player's turn: You can detach 1 Xyz Material from this card, then target 1 of your opponent's banished Fusion, Synchro, or Xyz Monsters; return it to the Extra Deck, and if you do, destroy 1 monster your opponent controls with the same monster card type (Fusion, Synchro, or Xyz). You can only use each effect of "Aegaion the Sea Castrum" once per turn.
Appears in 2 expansions
Printings (2)
| expansion | Code | Rarity | Price | Buy |
|---|---|---|---|---|
| Breakers of Shadow | BOSH-EN055 | Common | $0.18 | |
| 2016 Mega-Tins Mega Pack | MP16-EN213 | Common | $0.20 |
Aegaion the Sea Castrum: FAQ
How much is Aegaion the Sea Castrum worth?+
Aegaion the Sea Castrum currently sells for $0.18 – $0.20 on TCGPlayer, from $0.18 for BOSH-EN055 up to $0.20 for MP16-EN213. 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 Aegaion the Sea Castrum printed in?+
Aegaion the Sea Castrum appears in 2 sets: Breakers of Shadow, 2016 Mega-Tins Mega Pack.
Is Aegaion the Sea Castrum legal in tournaments?+
On the current TCG Forbidden & Limited List, Aegaion the Sea Castrum is unlimited (3 copies).
What is the passcode of Aegaion the Sea Castrum?+
The 8-digit passcode printed on Aegaion the Sea Castrum is 10678778.
What is your collection worth?
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