There can only be 1 "Earthbound Immortal" monster on the field. During the Main Phase (Quick Effect): You can banish this card from your hand or GY; send 1 "Earthbound Immortal" monster or "Red Dragon Archfiend" from your hand or face-up Monster Zone to the GY, then you can apply 1 of these effects.
• Special Summon 1 "Earthbound" monster from your Deck or Extra Deck.
• Special Summon 1 "Red Nova Dragon" from your Extra Deck. (This is treated as a Synchro Summon.)
You can only use this effect of "Earthbound Immortal Red Nova" once per turn.