Tutoring is very highly priced in Magic these days and this is not entirely unreasonable but it does make most of it pretty useless at aiding in a mana screw
No new mechanics have been introduced, the card battle interface is exactly the same, the story mode plays exactly the same, etc
However, Rex Raptor and Weevil Underwood impersonates him after knocking Salim out, but are caught by Mokuba
Wizards of the Coast has not confirmed any other Marvel-focused sets of yet, but is reportedly planning to debut more expansions based on the comic book juggernaut's franchises
Tariel, Reckoner of Souls focused black for reanimation, Oros, the Avenger centered white for its removal, and Kaalia of the Vast centered red for its aggressive attack triggers