I would like to consider some things to give my artifacts indestructibility, Replenish, Flickerform Ward, and perhaps Leonin Shikari. Hopefully there are other ways to be able to activate Mageta and attack on the same turn, to win quickly with general damage. Any tips are appreciated, but I own these and precious few other cards after selling my collection.
Elspeth would help with getting general damage in quickly, as she can pump and give evasion. Plus she's eventually help making not just your artifacts indestructable, but your creatures and enchantments to boot.
Keep in mind as well that the Duel Deck: Elspeth Vs. Tezzeret will be out soon, so Elspeth's should be easy to find.