Say what you like about the Gatewatch, or about
the way Wizards of the Coast's creative people
let the story of Zendikar sit for five years
before the Battle; but I love a good hero shot,
and I defy you not to like one that showcases
some of Magic's memorable characters and a
pivotal moment of victory in one of its most
unique and exciting settings. Sure, seven mana
may be on the expensive side for a Mana Flare
effect, and it can be hard to fit a seven-mana
enchantment and enough creatures to take
advantage of its card-drawing ability; but the
combination of the two is unique, synergistic,
and a great fit for the sort of format that
revolves around making lots of big plays and
where you always have at least one creature
effectively in your hand (that's Commander).