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- This card can be extremely useful and easy to use in a Fish Deck.
- If this card is used in a Fish Deck, a great Field Spell Card to use to keep it on the field would be A Legendary Ocean, which would effectively lower the levels and boost the ATK of your Fish-type monsters that have the WATER Attribute, while allowing Earthbound Immortal - Chacu Challhua to stay on your field.
- An easy way to summon this card is to use Superancient Deepsea King Coelacanth's effect to bring out two Deepsea Macrotrema. Then tribute the two Deepsea Macrotrema to normal summon Earthbound Immortal - Chacu Challhua.
- Labyrinth of Nightmare will place this card in Defense Position during your End Phase, allowing this card to attack directly and lock down your opponent's Battle Phase.
- Use defense boosting cards like United We Stand and Mage Power to maximize the damage done by this card. Also, you can use Chorus of Sanctuary to increase this card's damage as well as maintaining it on the field.
- Crystal Beast Emerald Tortoise works well as it can change Earthbound Immortal - Chacu Challhua to Defense Position after attacking directly.