The first number and letter are the simulator version
Leaders are always a safe bet to purchase, as they retain their value and sometimes even go up in price depending on the leaders tournament results
It might just be fudged a little for show, but the confusing setup could also be pointing to a slightly different meta that is different from the one players know now
Were still unsure if Amazing Spider-Man has competitive potential, but with an ability this powerful, someone is likely going to try and break it
Mono-Black Zombie Tribal deck, built around 2/2 zombie tokens while still including some targeted removal, board wipes and card draw
Its a bit costly at 3 mana a rotation and requires something else to sacrifice, so it might not be ideal for every deck