I think Damien in Imperial Formation is utterly useless. He would only play or 6 points (6+6) on such a risky condition. IMHO, Damien is ONLY useful with Enslave where he can play for 10 or 12 (+6 on his body) points more. No other NG leader currently is worth Damien. You should try to add Brathens. He is kind of an auto-include card. Even if your deck is soldiers deck and you don't have much assimilate scope, Brathens plays for a very good tempo and he would get triggered by Coup and Oneiro (the echo version) and you can add Mushy Truffle which will also trigger Brathens and puts good solider like Pikeman for Bonded.
I am currently playing Imperial Formation with these high provision cards.. Brathens*, Oneiro, Ramon, Mushy Truffle, YenInvo*, Heatwave, Coup*, and Joachim* with Illusionist and Pikeman for bonded and Blightmakers-MageAssassins* and DeadMansTongue* (*=auto-include in ANY NG deck since they are very very good and solid)