Develop Your Brain is often used in late-game control decks to filter and find the key cards needed to set up their win condition
And it's not the only card that can come back from death
Introduces new members/support for the "Amazement", "Beetrooper", "Branded", "Bystial", "Chaos", "Code Talker", "Constellar", "Cyber", "Cynet", "Despia", "Dinomorphia", "Dogmatika", "Dual Avatar", "Fusion", "Gunkan", "Icejade", "Infinitrack", "Kashtira", "Libromancer", "Mikanko", "Pendulum", "Polymerization", "Purrely", "Rescue-ACE", "S-Force", "Solfachord", "Superheavy Samurai", "Superheavy Samurai Soul", "Swordsoul" , "tellarknight", "Tri-Brigade" , "Virtual World", and "Virtual World Gate" archetypes, as well as the Albaz Dragon, Broken World, Counter Fairy, and Heart series
Its also why I didnt include Old Gnawbone in the build (and by the end there wasnt really anything I wanted to take out in order to fit it in)
Umbra Mystic costs a smaller more reasonable three mana for a 2/2, and your other attached Auras can save their attached dork by giving them all totem armor
I don't want to ruin anyone's fun, but I feel obliged to point out one thing