I'm looking to do the "Polymorph a creature token into the 1-of creature in the deck" -routine with Possibility Storm and an adventure card or two. I'm looking for the best instants and sorceries to cheat out.
In the sorcery department with Enter the infinite I could put lightning storm back on top and possibility my way into it with any instant.
Teferi, Time Raveler + Possibility Storm is a nice lock. One could redo a jeskai control deck and have the only sorceries be Fae of wishes, Realm-Cloaked Giant as a wrath and maybe some payoff sorcery for the times when you draw only the Possibility storm.
What other cool cards could I use with Possibility storm?