So, while a seven-mana extra-turn spell might not seem that broken, especially considering that the Power Nine version of the effect costs just two mana, the way that Nexus was released, the janky Pro Tour proxies because of the curling originals, and the card quite literally breaking digital play easily make it the most broken card of 2018
You can't use Cloud's second ability to try to attach an Equipment to Cloud if that Equipment can't legally be attached to Cloud
It also comes with unique art and a gold serial number - 001 / 001
Boon of the Wish Giver is such an out-of-place reprint perhaps flavourful, I will not lie but could easily have been something more impactful like Step Through, or Grave Upheaval
-3x Lilo - Galactic Hero +3x Smash -2x Lawrence - Jealous Manservant +2x Madam Mim - Fox -2x Freeze, -2x I'm Stuck
It's part Massacre Wurm, part Withengar Unbound, and it's an altogether cool addition to the set, even with clear multiplayer text tacked onto a Standard-legal card