There are some others cards for which the text box isn't white, but what's in the text box is more of a background pattern rather than part of the Pokemon, for example this version of Keldeo EX from Boundaries Crossed: Given that's there's a full art version of the card in the expansion (#142), I guess it's safe to say that this card is NOT full art
The enchantment typing and graveyard interaction could make it relevant in the right deck
Promos (P) Promotional cards - like the aforementioned Lightning Bolt from MagicFest - can come from events, prereleases, special products, store promos, conventions, Secret Lair drops, and various other places where Wizards know we players are willing to pay top dollar for them
25 Spells Monastery Swiftspear Soul-Scar Mage Zurgo Bellstriker Satyr Firedrinker Bomat Courier Goblin Guide Seal of Fire Lava Dart Mutagenic Growth / Gut Shot Lightning Bolt Chain Lightning Burst Lightning Forked Bolt Firebolt Wild Slash Faithless Looting Harsh Mentor Young Pyromancer Firebrand Archer Thermo-Alchemist Abbot of Keral Keep Insult / Injury Chandra, Fire of Kaladesh Stoke the Flames Fireblast This list is pretty close to the best version of the best deck possible in unpowered cube
