If youre scanning through a stack of cards, waiting 3+ seconds per card adds up fast and a scanner that cant tell a reverse holo from a regular print is giving you wrong prices, not just slow ones
Firebending Student belongs to a completely different deck, but it may be a powerhouse in an instant-heavy red deck, potentially enabling blisteringly fast turn-three kills with Dreadmaw's Ire and Bulk Up
I think with the Cleansing Wildfire and Force of Negation its a good matchup, but its mostly just annoying that cards like Karn, the Great Creator, Ulamog, the Ceaseless Hunger, and Oblivion Stone can all answer Emrakul, the Aeons Torn
Since youll spend some money on grading services, you might want to skip grading Commons and regular Rares, unless they can fetch high prices in the market