Card Trivia:Poseidra, the Atlantean Dragon
- This card's name is a portmanteau of "Poseidon", the Greek god of the sea, and a dragon/hydra.
- Even the tip of its tail has the image of Poseidon's Trident.
- This monster's appearance resembles "The Dragon Dwelling in the Deep". Also they are both WATER and Sea Serpent-Type monsters despite both having Dragon in their name.
- This monster resembles the Lagiacrus, from Monster Hunter.
- This card's position and color scheme is also very similar to Lagiacrus.
- This card's effect seems be a mix between "Masked HERO Acid" and "Giant Trunade". "Giant Trunade" returns all Spell and Trap Cards on both sides of the field to the hand and the effect of "Acid" reduces the ATK of your opponent's monsters.
