It's a 3-CMC (2 generic, 1 Green) enchantment that allows you to exile a creature you control to add X mana of any one color, where X is the creature's mana cost + 1
The introduction of The Soul Stone also strongly suggests that future Marvel sets focusing on other heroes like the Avengers and X-Men are on the horizon as part of a multi-year collaboration
Below is the list of every planeswalker we know has lost their spark: Aminatou Basri Ket Calix Daretti Huatli Kiora Koth of the Hammer Liliana Vess Mu Yanling Narset Niko Ariss Nissa Revane Ob Nixilis Rowan Kenrith Saheeli Rai Samut Sarkhan Vol Teferi Akosa Tyvar Kell Vraska The Wanderer Will Kenrith If you're interested in diving deep into specific categories of 'walker, we also have guides to the best white planeswalker cards, the best red planeswalkers, the best green planeswalkers, and the best planeswalker commanders.
Artifacts are one of Magic: The Gathering's original card types, with 30 years of iteration to get where they are today
If it's a permanent card, you may put it onto the battlefield under your control
