Hello, DarthKawaii! I have been using "Affinity" for editing my home brew creations (free photoshop clone). Also, I used the Knowbscure 4.0 PDF from @Freakinger knowbscure-35-34-card-expansion-version-40 to get the different elements/templates.
I try to say as faithful as I can for the element sizes and spacing, but realistically I just go with what looks good. I do recognize that Eldrazi from your card anywheres ;). This is of course personal use and the art is just AI generated. I just made an additional 6 card expansion for myself focusing on the core deck cards. So I made this card as an additional 'binding stone'. Some of the other cards have effects that occur for binding stones. So more in the deck helps trigger them (especially I get the "if you don't have any stones revealed, 'you lose the game' card) Btw, can I use your Star Devourer Idea? I have an idea to add to it. So the lore behind this card would be that Feragot defeated others and destroyed their binding stones. Maybe we are just on a long list of others that they have their eye on.
Best,
Chris.