dominaria mtg booster box United Jumpstart Boosters contain 20 cards (including all the lands you need to play) MTG Dominaria United - Set

Thankfully, even if Cloud flops in Standard, there will be tons of demand for him from Commander

If so, how many, and which ones

This set could be the start of your MTG journey "This new Magic the Gathering crossover is exactly what I dreamt that Final Fantasy cards could be [...] the new renders of Terra, Cloud, Tidus, and Y'shtola on the boxes are some of the nicest depictions of the beloved characters I've seen in years - and might finally be the push that gets me into playing Magic

There are 8 mythic rare borderless character cards from Magic: The Gathering FINAL FANTASY Commander found only in Collector Boosters