Including one sticker card with a specific house rule involving how to handle stickers, especially if the card does end up being some manner of Legacy mainstay, is a lot easier to implement than building a whole environment full of Attractions and sticker cards
Side by side, we can see some differences, and it looks like its all upside for Kiki-Jiki: the card has haste, so it can be used right away, and the only cost to activate is to tap it
All it does is return a permanent spell from your graveyard to your hand
Commander : This is where Smile at Death really has the best opportunity to shine currently
Ursula's Return will introduce additional franchises, beloved characters, and new gameplay evolutions and reveal more of the story of Lorcana and the Illumineers summoned there
There are no brakes on that ability to reduce its power