Ashes of the Abhorrent Ashes of the Abhorrent might be too narrow an answer
Once your side of the table is overrun with elves, her second ability slams the door shut, tap 10 untapped Elves and each opponent loses 10 life while you gain 10
Unstable Cards to Avoid If you believe that a subset of Unstables rares and mythics will be worth something in addition to the lands and tokens, it stands to reason that a bunch of the sets other cards are going to end up being worth almost nothing in the end
Amethyst cards focus on magical glimmers and effects while the Steel cards have a more combative approach
From "Erhnam-geddon" to "Prison" to "White Weenie," white decks will never be the same without this mass-land-destruction spell
In every zone other than the stack, Twice Upon a Time uses only its non-Adventure characteristics, and you ignore its alternative characteristics in those cases