Edison format ruling
Exxod, Master of The Guard
Card text as printed in this era© Can't be Normal Summoned/Set.
© Must be Special Summoned (from your hand) by tributing 1 "Sphinx" monster.
① If an EARTH monster is Flip Summoned: Your opponent takes 1000 damage.
(This card must be face-up on the field to activate and resolve this effect).
Rulings
- The only way you can Special Summon this card is via its own procedure. Even if it was initially summoned that way, you still can't summon it with card effects.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.