Changes

[[Jace, Unraveler of Secrets]], [[Nahiri, the Harbinger]], [[Sorin, Grim Nemesis]] and [[Tezzeret, the Seeker]] are [[Planeswalkers]] released at the time of the set. All of them have normal mana gains except for Tezzeret, whose is two points lower than a current mono color, at +7 in total. [[Origins]] cards are in all of their Starting Decks, but the expansion set following SOI, [[Eldritch Moon]], was the first in which non-Origins cards were added to Planeswalker decks. Probably because EMN was an expansion, Shadows over Innistrad cards were added to the deck of [[Arlinn, the Pack's Hope]], rather than SOI ones.

[[Emrakul's Corruption]], an Eldritch Moon event, gives rewards from [[SOI]]. This is because [[Eldritch Moon#Cards|EMN cards]] are only found in SOI packs. [[Avacyn's Madness]] is a SOI event, but gives [[Eldritch Moon]] Coalition Rewards. The reason for this is less clear; whether purposely or not, but would seem to be a means of increasing the accessibility of reward makes EMN cardsmore accessible.