Get this card onto the field in face up Defense Position along with a "Stardust Dragon". "Stardust Dragon" will protect the field from being crippled by a destruction effect while this card will ensure that "Stardust Dragon" will not be destroyed by battle.
Combine this card with "Spider Web". "Earthbound Immortal Chacu Challhua" will be able to attack the opponent directly, then will switch to Defense Position, preventing the opponent from conducting their Battle Phase.
This strategy work well with "Spirit Burner" equipped to "Chacu Challhua".
This card can be used with "Secret Village of the Spellcasters" in any Spellcaster Deck. With one Spellcaster on the field, "Earthbound Immortal Chacu Challhua" in Defense Position, and "Secret Village of the Spellcasters" in play, the opponent will not be able to activate Spell Cards or conduct their Battle Phase.
The Trap Card "Revival of the Immortals" works well with this card, since this monster's burn effect be used and it never needs to attack. Using "Armageddon Knight" or "Dark Grepher" can put "Chacu Challhua" right into the Graveyard on the first turn to get it ready to Summon.
Tribute Summon by Tributing 1 "Hardened Armed Dragon" and any other monster to prevent it from being destroyed, even by its own effect.