While it is not surprising that there would be a drop in demand with a price increase, even before the price increase, demand for Sub-Grades was relatively low (at 15.8% of total), and even after the price increase, demand for Sub-Grades did not decrease by a meaningful amount (4.1% of total)
Practice: Play a few games with friends or family to get comfortable with the flow of the game
Spend this mana on Nexus of Fate, one of the silliest extra turn spells ever printed, which lets you chain together extra turns until your Reclamations give you enough mana for a lethal Expansion / Explosion
For extra security, sealing the top loader with a team bag is also a smart choice
Prismari Artistry (UR): Cast powerful, high-cost spells to create massive Elementals and overwhelm your opponents with explosive plays
It seems kind of dorky at first glance, but because Petrified Hamlet can itself tap for mana, Faust could just play it and tap it for his Aven Interrupter on-curve to really slow the opponent down