Asisreo
Patron Badass
I mean, I know I can do anything in my campaign. Unless you're saying that you would've hunted me down and John Wick me and my players over my interpretation of Wish.Wish is already the spell. It can accomplish nearly anything at a risk. It can also duplicate any spell of 8th level or lower with no risk. It doesn't need to also have "requirements" interpreted in the broadest sense possible. A sense which is obviously broken and requires hard DM restriction based on multiple examples that I and others have provided in this thread.
Obviously do whatever you want in your own campaign, but caveat emptor.
I think the 5 things I listed: casting time, components, concentration, targeting, and Attack Rolls are fine. They probably don't break the game all that much. Sure, you can concentrate on two spells but that just means you pretend like you're Acerak. Plus, any other spell you cast between the long rests are guaranteed not to also be level 9 (barring Epic Boons). There's the thing with guaranteed attacks hitting but most attack roll spells kinda suck.