The problem is that enchant artifact only lasts for the lifetime of your shield (3 turns max) and doesn't stay when you play a new shield. While being able to enchant your shield at a crucial juncture would be a nice perk, I doubt it would be worth diluting your deck and depriving yourself of quanta from mark of aether. It could be more useful against Seism since you'd only have to protect your stack of pillars once (twice if you have mixed pillars/towers), but on the other hand losing mark of aether hurts a lot unless you manage to draw enchant artifact right away.

Quote Originally Posted by taneugene View Post
IMO you spread the cards too thin. Might be better to reduce the number of elements, and increase the variety of cards in each element.
That's one opinion. Personally I rather like the diversity in elements as it helps distinguish this game from other similar TCG types; most of the elements are too limited at present to really be competitive as mono-color decks, sure, but the game as a whole seems to heavily lean more towards combinations of elements. Bear in mind too that it's still a work in progress and that there are going to be more cards coming.