Cards like that historically peak a few weeks before a rotation and soften afterward, and the Amber Steel builds that leaned on Reign of Jafar are the obvious pressure point
This set introduced a brand-new classification of cards called Whispers: strange specters of unknown origin
The inkwell is then used to summon other characters, items, and play action cards, creating a natural ramp up in resource costs as most players choose to ink something every turn
Remember, characters cant be exerted to sing on the same turn they are played (unless the card says otherwise)
, this is a good place to start
Being that reckless is a keyword, there will be likely be characters that have it organically, so we could see it used as a way to balance powerful effects