"Ccapac Apu", "Ccarayhua" "Uru", "Cusillu" and "Aslla Piscu"
"Earthbound Immortal" are based on the Nazca Lines. Each of them is pictured rising from its corresponding Line and their form matches the being they represent and their Type.
|Aslla piscu||Hummingbird||Winged Beast|
|Wiraqocha Rasca||Condor||Winged Beast|
The "Earthbound Immortal" monsters are very powerful and have effects that range from inflicting Effect Damage to your opponent while locking their Battle Phase ("Chacu Challhua"), to taking control of an opposing monster, as in the case of "Uru". Also, all of them can attack their opponent directly and cannot be targeted for attacks.
Such a powerful set of effects comes with the some drawbacks: there cannot be more than 1 "Earthbound Immortal" monster on the field at the same time and they are destroyed once there is no Field Spell Card active.
If "Hardened Armed Dragon" is Tributed to Tribute Summon an "Earthbound Immortal" monster, it prevents it from being destroyed by card effects (including its own). Alternately, "Earthbound Linewalker" can be used to protect "Earthbound Immortal" monsters. "March of the Monarchs" will also stop them being destroyed by their own effects, as will the effect of "Number 66: Master Key Beetle". In an emergency situation, "Skill Drain" can also prevent them from destroying themselves.
Their strategy basically relies on attacking directly and dealing a huge damage every turn; once your opponent cannot attack them, and if they are protected by cards like "Safe Zone" or "Mound of the Bound Creator", there are few ways of stopping them. "The Seal of Orichalcos" also works well in this Deck, as it can protect itself as well as boosts your monsters' ATK by 500.
They can all be Summoned easily, due to having no restrictions on Special Summoning them (except the field-unique condition).
Because they depend on Field Spell Cards being on the field, cards like "Ancient Fairy Dragon", "Black Rose Dragon" and even "Mystical Space Typhoon" can cause "Earhbound Immortal" monsters to destroy themselves. Cards like "Field Barrier" or "Malefic Stardust Dragon" can be used to protect a Field Spell Card from being destroyed.
Cards that cause the Field Spell Card to leave the field without destroying it are still a threat even if with "Field Barrier", such as "Shaddoll Dragon" and "Castel, the Skyblaster Musketeer". This can cause additional problems, as Field Barrier prevents a new Field Spell Card being played while it is active.