Last weekend while thinking about my own deck I remembered (and added) 2 great cards: Rite of Replication and Cryptic Gateway . Due to the low cmc of most of your wizards, I'd say that the artifact won't do much for your deck. I do think that the sorcery suits it quite well though.

Mind Over Matter though tends to be unfun and make you lose your friends. No?

Mind Over Matter is certainly not a casual card, but my playgroup is really competitive and we don't really care if a player uses an auto-win card.
Rite of Replication was on an early version of the deck, but i took it out along other cards(Peregrine Drake , Great Whale ) as they were the only cards in my deck that had synergy with it. it is certainly a great card, but there are not many good targets for it in my playgroup.
Cryptic Gateway is a really fun card, i had never heard of it before. i would certainly play it if i were playing Dragons or something like that :).

I think that Rite does work well with your etb creatures. Do it to an Archaeomancer to recover key sorceries/instants or on Aether Adept to clear part of the board or on Trinket Mage... but yeah, you don't have many targets indeed.

it would be awesome with Archeomancer if i had any of the extra turns spells like Time Warp or Time Stretch :)