Thank you for reply! I will still be looking forward for other matchups guides someday :)

There's another question which were bothering me at the time I played the deck, how often do you get Tracker with GSZ at 4 mana (or maybe you don't and just want to draw it as it was one of few 4 ofs in the deck at the time), would you get Courser instead in some situations/matchups (probably yes if you have Library, not sure otherwise) or would you generally prefer to wait a turn or two and get Titan instead?