Assemble & Contraption - An ability and related new type that are hinted at on Steamflogger Boss, but do not actually appear on any of the set's cards. This card along with its abilities was printed as a joke and parody.
Echo - now with cards that have different echo costs instead that of the original casting cost; While Planar Chaos has started this, the echo costs of cards now can include off-colored mana costs or non-mana costs.
Cycling - now with cards whose cycling cost is not mana cost
Morph - some cards may now have off-color morph costs, as well as non-creature cards with Morph.
Scry - cards may have different Scry numbers, as well as cards which allow a player to Scry before an ability occurs.
Suspend - now with cards that can re-suspend themselves
Split Second - now with sorceries and enchantments that have split second