@Aaron-Patten Thanks! I had not considered Sphere effects in a Stasis deck, but it makes perfect sense. I do feel Arcane Laboratory may be a bit on the high side for cmc, and Thalia might cause some mana issues, but I will test them out as well. I have found the Regrowth were great in Gush shell, but it seems Gush was recently restricted, so perhaps the Regrowth should be cut too. I wanted Thwart to work, but I fully agree that it just isn't viable. As for the Opal, I find that I do get mana screwed sometimes, but I can't think of a better blue mana mox-like option. I guess I could just drop the Opal entirely. What do you think about Propaganda to work kinda like Thalia against dredge? It seems like it may work well against Fish too.
@vaughnbros I like to use the Howling Mines in some shells (like this one) to apply more pressure with Black Vise, it is classically one of the components which makes the "Turbo" part of the deck name (https://mtg.gamepedia.com/Turbo_Stasis), and it helps me get to a Stasis solution faster. Before the Stasis goes down the opponent does get advantage from the Mine first, and I have found that the Mines sometimes cause me to lose by getting my opponent too many answers at once, but I also feel like part of the fun of the deck is the struggle to not lose to myself (like how Pox plays). So I guess the Howling Mines are kinda in there for that too.
As for Planeswalkers, I really haven't looked into many, I will have to go through them and see what I can find. Dack seems to be a neat option for Shop matchups, but I am not sure how I feel about splashing a 3rd colour (especially an off-colour). What sort of sideboard cards were you thinking for grave hate? Tormod's Crypt seems nice with the 0cmc, maybe Grafdigger's as well.