It has has a lot of play for occupying a slot that is woefully under subscribed in both red and green who have very few aggressive three drops
One mana to draw a card every turn is substantial, even if its not something you can run out on turn 1
Most of the time, we dont care about 2-drop walls that do nothing but block, but it feels free when you get a card out of the deal, and it can also synergize with anything that might let you reuse the ability
Currently run 39 spells capable of hitting either ench or art, 3 of which are dedicated disenchant spells without a body or cycling
Its an enchantress that triggers other enchantresses, which is valuable, but being an enchantment instead of a creature is valuable
While Mysterious Mime has potential, it may not see much play compared to other more impactful options