blue dragon pokemon card Dragonair - Sun & Moon Pokémon 95/149 target creature an opponent controls gets Blue Eyes White Dragon Extended

There's also the complexity factor to consider

In full Pokmon GO fashion, there are many characters unique to the mobile game that are making their first set appearance in the Pokmon TCG, such as Professor Willow, as the new Professors Research [Celebrations] card

Abrade Acolyte Hybrid Active Volcano Aftershock Aggression Anarchy Ancient Grudge Anzrag's Rampage Avalanche Avalanche Riders Avengers Disassembled Awaken the Sleeper Ball Lightning Barbarian Riftcutter Bash to Bits Batterhorn Bearer of the Heavens Bend or Break Blaster Mage Blastfire Bolt Blood Frenzy Blow Your House Down Boggart Arsonists Boil Boiling Seas Bomb Squad Boom // Bust Breaking Point Brotherhood's End Builder's Bane Bumbling Pangolin Bumi Bash Burning of Xinye By Force Capricious Efreet Ceremonial Guard Chandler Chaos Charm Cinder Cloud Cinder Wall Cleansing Wildfire Clear a Path Combustion Man Consuming Ferocity Crash Crash and Burn Craterize Crush Cryoclasm Dark Temper Decree of Annihilation Deface Defiant Ogre Demolish Descent of the Dragons Desolation Giant Destructive Tampering Detonate Detritivore Devastate Devastation Diamond Pick-Axe Diaochan, Artful Beauty Dismantle Dragon Whelp Dreadmaw's Ire Drill Too Deep Dwarven Blastminer Dwarven Confluencer (playtest) Dwarven Demolition Team

ILLUSTRATOR Howard Lyon LEGALITIES Standard Future Historic Timeless Gladiator Pioneer Modern Legacy Pauper Vintage Penny Commander Oathbreaker Standardbrawl Brawl Competitivebrawl Alchemy Paupercommander Duel Oldschool Premodern Predh Tlr LANGUAGES DE EN ES FR IT JP PT RU ZH-CN ZH-TW RULINGS 2008-08-01 Although Dream Thief says it looks for "another blue spell," there's no requirement that Dream Thief actually be cast as a spell (or be blue) for this part of its ability to work