This is similar to summoning sickness in Magic: The Gathering - in Lorcana, its said that their ink is still drying
With less of a focus on low-cost characters than Amber/Amethyst and fewer heavy hitters than Sapphire/Steel, Emerald/Ruby places a big emphasis on solid mid-range options
A staple for control decks, this card is a reliable character removal tool, being able to send exerted characters to a player's Inkwell, an incredibly powerful ability which is difficult to counter
You could also go a tokens route, generating tokens for casting non-creature spells, and using effects like Impact Tremors to kill opponents and keep your hand topped up
Meanwhile, his six-cost Floodborn version can banish just about anything out there in a challenge: both character and location (with a few exceptions on the location side of things)
For example: Art treatment rarity Many Magic cards are printed with multiple different 'treatments'