Here's why:
* Rarity: The Egyptian God cards (Slifer the Sky Dragon, Obelisk the Tormentor, and The Winged Dragon of Ra) were originally released in the "God Cards" set in 1999. This set only had three rarities: Common, Rare, and Ultra Rare.
* Secret Rare: The Secret Rare rarity was introduced later in the game, and it was never used for the Egyptian God cards.
* Special Edition: The Egyptian God cards have had special edition releases with different artwork and rarities, but these are not considered "secret rare" versions. They are typically identified as "Ultimate Rare" or "God of the Gods" versions.
So, while there are various versions of the Egyptian God cards, there are no "secret rare" versions.