@serracollector I keep adding it and removing. Believe it or not - paying life actually matters in the format right now if you are not a super aggro or an over the top combo deck paying life really matter. It's why I am not playing Deep Analyse.
I think that there are too many auto includes in Blue decks right now and I am experimenting with adding and removing these auto includes: Gitaxian Probe, Merchant Scroll, Gush, Treasure Cruise and Narset.
I have just starting really playing again and the format is super fast right now. Tempo decks like Delver will struggle if they cannot get pressure on the board fast and protect it. Probe does not help protect the threat.