There are almost no 3 mana counterspells in the cube while the vast majority of the 2 mana ones are in the cube
(And as Aaron described in his column two weeks ago, Legendary Rules Changes, R&D also realized it was a perfect time to revamp the legend mechanic.) Once legends, or should I say legendary creatures, became part of the block's theme, all the designers started thinking about how to add some new wrinkles to the age old mechanic
Better than Anguished Unmaking
Most of the time I still cast Monastery Mentor on the third turn and risk it dying because the upside of untapping with it is so huge
The most unique part of sapphires identity however is ramp options that allow you to put extra cards in your Inkwell to outpace your opponents resource generation
Now, before you pull out your wings and pitchforks, I have nothing against the Fae themselves