| Name | Ancient Weapon Poseidon |
| Category | Event |
| Cost/Life | 1 |
| Color | Green |
| Types | Fish-Man Island |
| Effects | Main Look at 4 cards from the top of your deck; reveal up to 1 {Neptunian} or {Fish-Man Island} type Character card and add it to your hand. Then, place the rest at the bottom of your deck in any order. |
| Trigger | Draw 1 card. |
| Variants | 1 |
| Number | 37 (UC) |
| Shop |
|