Trying to think of what should be in a list that can run 4x fastbond, and I think it has been so long since people looked at that card as a core strategy since it has been restricted forever that all the interactions are not even fully understood. Obviously things like Gush and Treasure cruise are included in the decks core but I trying to think of what other angles the deck may want to try and hit. Heres some of the stuff I have been looking to test/include in the list, would love other ideas if people have them.
Zuran orb / Crucible - Infinite mana, infinite life. There are some decks that cannot deal with infinite life at all (shops) but even if not then you have plenty of mana to do what you need. Easiest win past this point I would assume is Banefire but someone can correct me if I'm wrong.
Cryptic caves / Crucible - Land only draw engine that contains no spells and is very hard to interact with. Goes infinite with Zuran orb. You can swap out the caves for one of the horizon lands, but the life cost would probably matter at that point.
Field of the Dead - Just seems solid in this deck as it is an uncounterable source of creatures. If you have a sac outlet and crucible online it can make a whole lot of if not infinite creatures. It functions a lot like a Valakut that requires no Mountains
Bojuka Bog / Halimar Depths / Other ETB lands - There are probably some number of these that are worth playing.