Zabu looks like such a cool card that I thought I'd try my hand at building a deck for him before his launch. I saw a lot of people building zoo decks for him but everyone was missing the best 1 drops in the game, the Infinity stones. My favourite zoo deck I've seen so far is KMBest's Vuvuvzela so this is my attempt to adapt that deck to make use of Zabu.
Zabu, Kazar & The Infinity Stones are the core of the deck and what we're attempting to make work.
Quinjet - Is an auto include since it makes the stones free and is another 1 drop for Kazar
Beast - Allows you to replay stones for more draw or any of our impactful 4 drop on reveals
Okoye - Since the stones allow us to draw through and play so much of our deck she can easily end up adding 8+ power which is well above rate
Blue Marvel - A staple of zoo, it's hard to imagine he would be outperformed by enough cards to lose his spot in the deck
Now for the 4s. With the exception of the first 2 its mainly to taste but this is what I would be eager to try first.
Shang-Chi & Enchantress - Are both great tech cards that see play in lots of decks that expect to play them for 4 so if we expect to play them for 2 how could they not be auto includes.
Shuri - I have no plans to play Thanos almost ever but that doesn't mean if the situation presented itself I wouldn't play a 26/36 power Thanos (I don't know how the ongoing effect works but I assume it wouldn't double the extra 10) and if I'm playing Shuri we'll need extra targets
Typhoid Mary & Crossbones - Rescue and Ms Jones don't work well with Shuri so these 2 were my picks. Mary is bigger and has some synergy with Enchantress so she should be fine. Crossbones in my mind narrowly beats out Sentry (though you can pick up the void with beast) but neither of them excite me. However without a second target Shuri should be cut as well so in he goes.
So that's the list, I have a few other options though. As I said above I've listed a few other 4 drop substitutions if Shuri & Crossbones are under performing but you could probably put whatever 4 you like in. I could also see removing one 4 drop and either Beast or Okoye to make room for Carnage & Hood.
PS. if you choose to add Spider-Man into the list you can play Spider-Man then Beast of 4 and then Spider-Man again along with 2 more 4 drops on 5 so you know that's pretty obnoxious.