I take back my old answer and I substitute it for the test run I just did.
http://www.carnageblender.com/inspect_opponent.tcl?opponent_id=144473&opponent_name=%28T79%29+%5bT%5dNot%2da%2dDagger
I did RoE pretty much the entire way each minion giving it the exact xp amount I wanted each to have, then towards the middle and the end I leveled a tat to 1.2m and that worked far better then I thought it would.
biggest thing was the +338 DBs >_> but other then that minor setback it was a lot of fun, and if I wasn't limited by the tourney shop I could've tweaked it to be a whole lot better.
If you have a big tat waiting for you/dont care for a tat, an RoE'd 4 minion strat is very fun to play with.