Earthbound Geoglyph

Field Spell

While any Level 10 monsters are on the field, this card cannot be targeted or destroyed by card effects. You can treat 1 Synchro Monster as 2 Tributes for the Tribute Summon of an "Earthbound Immortal" monster. If a Synchro Monster(s) is Special Summoned (except during the Damage Step): You can add 1 "Earthbound Immortal" Spell/Trap from your Deck to your hand. You can only use this effect of "Earthbound Geoglyph" once per turn.

Rulings – Yugipedia

Printings:

Legendary Duelists: Immortal Destiny: LED5-EN026 (Super Rare) - 2019-09-26
Legendary Duelists: Season 3: LDS3-EN056 (Common) - 2022-07-21
Maze of Millennia: MZMI-EN052 (Rare) - 2024-01-18

Prices:

Cardmarket: 0.07 €
TCGplayer: $ 0.09