Indistinguishable on the back [edit] The main issue to guarantee fair play in a card game is that all cards in the deck must be indistinguishable for any player who does not view the front side (if card sleeves are used, the term 'card' means the sleeve with the card inside)
Pair Perdita, Devoted Mother with some 2 cost characters that have abilities trigger when they enter play like Pinocchio, Talkative Puppet and youve got yourself an effective little recursion engine
If you won't play 4 mana spells, you can decrease the number of lands
Eldritch Horror An eldritch cosmic horror for blue-black custom card art, emerging from void energy with surreal anatomy and glowing eyes, eerie mist and fractured geometry in the background, deep indigo and obsidian palette, unsettling but elegant composition, moody cinematic lighting, intricate textures, high-detail dark fantasy TCG illustration