We will all start saying Temur, Abzan, Mardu, Jeskai, and Sultai as a normal progression from playing with the set, so start now and make the transition easier
Once you summon to one of the two Extra Monster Zones, it's yours for the rest of the Duel, and the other one automatically belongs to your opponent
Youre the instant archenemy of the table and the first to go if you play anything with infect, so keeping it at 10 counters at least gives you a chance to fight
History says not likely--while Mox Jasper could certainly be one of the chase mythic rares of Tarkir: Dragonstorm , it's highly unlikely the card maintains a price tag over $50 unless it's played as a four-of in multiple formats
Cards are in good preowned condition
After all, in Magic , there are plenty of decks that can win