Getting 2/2s simply for playing Magic is a strong ability on its own, and opens up options for mana ramp, Voltron (making 1 creature super strong through powerups), Curses like Curse of Opulence for table politicking, and several other cool, unique effects that Auras can bring to the table as you build a token army
(4/18/2017) If the card has X in its mana cost, you must choose 0 as the value of X when casting it for another cost that doesn't include X
I thought about tuning this way toward Enchantments, and that build when I devised it had nasty cards like Warped Devotion to make Words of Wind and Equilibrium more punishing
Even without stacking a ton of spells, being able to tutor one dragon straight onto the battlefield is powerful but when you storm off, you could end up putting three, four, or even five dragons into play all at once