Mermail King - Neptabyss (Rage of the Abyss 69385019/101), Quarter Century Secret Rare. Market price $0.15, down 6.3% this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.
2+ monsters, including a Fish, Sea Serpent, or Aqua monster Your opponent cannot target WATER monsters this card points to with card effects. You can only use each of the following effects of "Mermail King - Neptabyss" once per turn. If a WATER monster(s) is sent to the GY to activate a card or effect (except during the Damage Step): You can take 1 "Abyss-" Equip Spell from your Deck or GY and either add it to your hand or equip it to this card. If this card in its owner's possession is destroyed by an opponent's card: You can add 1 "Atlantean" or "Mermail" monster from your Deck to your hand.
| Week | Market price |
|---|---|
| 2026-W31 | $0.19 |
| 2026-W32 | $0.16 |
| 2026-W33 | $0.15 |
| 2026-W34 | $0.16 |
| 2026-W35 | $0.16 |
| 2026-W36 | $0.16 |
| 2026-W37 | $0.15 |
Mermail King - Neptabyss from Rage of the Abyss (69385019/101) has a market estimate of $0.15, down 6.3% this week. Prices are estimates from TCGPlayer and Cardmarket.
It is a Quarter Century Secret Rare from Rage of the Abyss, a 101-card set.
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