So I'm using Message in a Bottle in my Kozmo deck to revive Sliprider, Forerunner and Dark Destroyer. I already have a Sliprider on the field which I tribute summoned. I overlay both Slipriders to XYZ summon Cyber Dragon Nova. I didn't summon anything else the same turn.
Now, I am unable to use Nova to make Cyber Dragon Infinity. There's a clause on Message in a Bottle to prevent all special summons except XYZ summon, I get that. But Infinity clearly says in the card text that it uses Nova to "XYZ Summon" itself. Is this a bug, or is it a ruling that I'm not getting? Help is appreciated.