Some cards, like Growth Spiral, may be obvious
As Polygon notes, The Pokmon Company has made clear that, when fans distribute art featuring any of the companys copyrighted intellectual property, they are agreeing to a royalty-free, non-exclusive, irrevocable, transferable, sub-licensable, worldwide license that gives it the right to use, transmit, copy, modify, and display Fan Art (and its derivatives) for any purpose. Legally speaking, that means TPC would have been in the clear to keep the immersive Ho-Oh as is
While Elesh Norn might look like a Commander card at first glance, the more you think through everything it can do the more it becomes clear it has potential to be a very impactful Modern creature
This is also done incredibly well, taking players through the mechanics and elements of battling one step at a time, offering reinforcement and an intuitive tutorial at every step of the way
The equip ability on its own, without outside help from cards like Leonin Shikari, cannot be activated at instant speed, so if you play an Artificers Hex on an equipment thats already attached to a creature, they will not be able to remove that equipment before they are in their main phase, guaranteeing you a dead creature
Why would eyes be menacing