Tolarian Academy is arguably more powerful, producing one blue mana for each artifact you control, which are easier to generate and harder to kill
The Restoration of Eiganjo // Architect of Restoration
Then on the occasions you do find yourself in need from a screw or a flood, even a slight one, you are able to limit the damage they cause by getting card quality out of the Shaman
In Kaladesh, you really can do whatever you want, including bashing face
Now things might change, with Magic 2010 (M10) and other sets coming out Domain is something I'm watching out of the corner of my eye
In the case of attractions, it turns out that stapling them onto a competent Izzet spellslinger commander is a surprisingly viable way to pull that off