The -5 was never all that important, and the other abilities still hold up, whether youre using them to combo with The Chain Veil or tutoring up a mid-cost utility artifact
For that, theres Yargle and Multani, who need very little in order to Commander-damage someone out of the game
Urzas Saga provides a consistent flow of threats, as well as a tutorable suite of artifacts for all situations
(2023-10-13) If a spell or ability allows you to copy a spell on the stack but doesn't specify that the spell is cast, that spell wasn't cast and won't be counted by paradox abilities
This doesnt necessarily mean that it will be more dominant than Jace, the Mind Sculptor at its peak, since power level is contextual, but in Modern, for example, where both coexist, Oko is the stronger card