99% chance
The Creation Project is nerfed to cost at least 4 next month. I went from Diamond 3 to Master - ranked 142 - in about 24 hours of dedicated play, adapting an existing deck to include Project.
Gavel's Insight was Disjunction for a while, to deal with the anti-relic meta at the upper levels. Didn't prove correct in the end, but if the meta gets that far gone it might.
Brenn's Insight used to be in, but ended up being too slow. Twilight Hunt replaced it -- it's good but probably still not ideal.
Riot Detail should rarely be played on turn 2 for 4 damage, but always should if they are playing Justice or Primal in a controlling way. (i.e. depleted power on their first or second turn.) Ideally you save Riot Detail to be played after you've deployed
The Creation Project. (Obviously if you can kill their turn two play, even trading, it's worth it.)
Fearless Crescendo was often used to pop the aegis on my opponent's creature, rather than give mine flying, in matchups where I wanted to sweep with
Pristine Light.
Helena, Skyguide almost certainly should be something else but I haven't found anything better yet. It won me exactly one game out of the 40 or so I played to finish the climb.
I won't be playing this deck this weekend. Or maybe I will? Probably not.
It was me. You broke my permafrost with it, and promptly rode that to victory.