Card Type: This is a critical part of the card that defines much of the next two bullets
Gemstone Caverns (Tsuyoshi Fujita) Gemstone Caverns is not a traditional Invitational card it was submitted in 2005 by Tsuyoshi Fujita, but he did not win the event (Terry Soh did, creating Rakdos Augermage)
It helped solidify the identity (or non-identity) of a face-down card on the battlefield
Cards with the Mardu watermark or name dont count unless they actually have the right color identity
The Luminous Frost theme deck features the new Alolan Ninetales, and its Luminous Barrier Ability gives it invulnerability against attacks from EX and GX Pokemon, making it a wall that GX and EX decks cant ignore
Declan locked Riley's usual tactics down with "Dark Contract with the Eternal Darkness", so Riley stalled with "Film Magician", but Declan destroyed it with "D/D/D Stone King Darius"