It's only $15 for 35 mini boosters (see here), and this year's is one of the best ever, with cards like Okidogi, Munkidori, and Gengar making appearances, it's a great mix of reprints and new faces
The inclusion of deathtouch and haste is nice, but Mardu Siegebreaker still needs to potentially put itself in harms way in order to do its thing
As long as you know the caveats of purchasing Pokmon cards on Amazon, you can actually make an informed choice
Either way, my guess is that a double-sided foil card in a sleeve is less marked than a single-sided foil card in a sleeve, as they currently exist
Arno is fine, I guess, and goes in 5c Ezio, Altair, or in non-ACR Rakdos decks
It feels too removed from what Magic typically is, and thats okay