https://www.youtube.com/watch?v=nzbuXlO0bT8
Need budget replacement for Emrakul in sideboard

might go up in land count - basic land count (1/2) - field of ruin or path to exile concerns. But then Boil screws you and you might need to replace in sideboard if you go up in islands. Crumble to Dust deals with Tron
reflecting pools are a bit awkward - prob what'd be cut from lands
Spell Snare not as good in the meta as you'd think it is (but I might still keep) - situation and could be sideboard instead
Stubborn Denial was tough to turn on sometimes, very needy card
Might throw in another burn spell for additional removal
Probably cut down to 2 on Mana Leak
Should add a 4th copy of Bonecrusher Giant
Thryx is kind of cute but could probs be kept in, could experiment with a 2nd one. But if you put a 2nd one in, then you may want to add in Cryptic Command so that you can bluff a CC (not really applicable to me with budget).
Could go heavier on Archmage's Charm (add more)
can cut Brazen Borrower or put in sideboard, Into the Breach could be cut too, and Royal Scions fits more in the Izzet spells deck than this one.
Add a little more mana
Cut glasspool Mimic
Another cool giant is Calamity Bearer - doubles damage that Giants deal. If you run this, don't run Cryptic Command.

Sideboard:
Ral is good for grindy slow matchups
Entrancing Melody nice against death's shadow/goyf (cheap creatures)
Jace is good for slow matchups
Boil good for decks that play Dryad of the Elysian Grove
Emrakul for Mill, works with breach - replace with something anti-mill
Could consider adding Frost Titan for control matchups
Anti-mill: Commit // Memory, Diminishing Returns, Day's Undoing, Time Spiral, Timetwister, Jace, Wielder of Mysteries, Laboratory Maniac. Maybe white Leyline for hexproof? Elixer of Immortality