While I wouldn't recommending going deep on a 83 tix card, if you were holding off on finishing your Modern collection, this might be a window unless you really believe she will be reprinted this spring, in which case you should continue to hold off
After researching and reviewing in preparation for this article, I can say that Mirrodin Besieged is a very good set in terms of Type 4 applicability, and is full of cards that are likely to make your stack better
Ajani Vengeant Unless you proliferate a bunch of times at instant speed soon after casting Ajani Vengeant, opponents are going to see the land destruction coming
Jodah costs one generic mana, one blue, one red, and one white, and has flying and is a 4/3
Key Cards [elAnara, Wolvid Familiar[/el] will help protect Tolsimir from fatal damage and board wipes, which will be very important as Tolsimir is one of the most important buffers in our deck
While I think that seven mana is expensive to get something that does nothing on its own, you can always cast Fractured Realm first and then cast Mirror Room in order to make two Reflections for the price of one