Another change you can possibly make is to take out Brainstorm for another restricted bomb, but it must be a good one. Merchant Scroll, or some sort of tutor like Imperial Seal. It's a deck that's on the cusp of just having one more card to be a fairly easy deck to win with. It doesn't even need Paradoxical Outcome to win tons of matches, it's just a great support card and draw engine.
You can also swap Chain of Vapor in the SB for Serum Powder if you wanna get greedy and allow yourself to get better chances to draw SB cards. The SB cards like Echoing etc will help you get out of sticky situations. Leyline is a clutch move against Dredge, Snappy decks and Tarmo decks. Not to mention is just destroys combo and other Academy decks if you've stripped their Academy.
Another big thing about Academy is that their is a foil to the deck.
Channel Fireball as funny as it sounds or Channel variants are a big reason why Blue has cards like Force of Will, Mental Misstep and Misdirection.
The way Channel Fireball decks are made sadly is that they require 4 Channel as a structural card. Without it players cannot use life as a resource.Another funny thing about MTG is that originally Academy was supposed to use White as a backup to support Black and Blue, since White has the best control elements and can support a combo engine with trivalous things like Balance, but Balance is the only card that is restricted in white. Maybe if Wizards eventually prints another White restricted card we'll have something that doesn't use Red as a backup in Tolarian Academy. Red is for Removal, Draw, and tricks like discarding both players hand, or just your hand if the other player doesn't have one. If White had let's say Balance go in the Wheel of Fortune slot, and maybe StP go in Echoing Ruin I might see that as possible. But White really needs some removal, I'll have to do more studying to find a few cards that go in White for the Echoing Ruin slot. MtG is mainly about studying when playing Tolarian Academy. With something like Rituals for example it might be about being flashy or say winning tournaments.
Gush is another one of those decks you really have to put a lot of time and effort into to really get it to work, theres tons of pro players that surely can atleast want to play Gush as a kitchen table magic deck, the same could be said for Shops and Dredge, but whats required to get those decks to run like a Academy deck is far and beyond what players are sometimes capable of. Which is why some players win the events, and some just don't. Sometimes Red is too strong, which is a common cycle in MtG. It forces players to lose to good decks. When actually they are a good player. It allows Dredge to cheat with Ingot Chewer, I actually had a Reveliark deck that used Ingot Chewer in standard, it was just way too good. I guess if you splash White you can use Hold at Bay or Divine Offering. They are both medicore cards. If Wizards really wants they can change Divine Offering to life lost this turn and Hold at Bay to less life but destroy all artifacts to with same name. Echoing Calm is a decent alternative to what White wants, I guess you could also run Fragmentize but it's just not the same as wiping out 2 or more Null Rods on the table. The original purpose of Echoing Ruin. I would actually be pleasant with a white reprint of Echoing Ruin but it's one of those where I don't think Wizards would want White splashing in the color pie to get a powerful effect at this time.
Depending on how you build Academy you can kick Aggro to the curve, or crush Combo or even other Academy decks.
