Ohhhhh, interesting units you got. I have yet to receive a ranger/dragon priest in my team but they do make increase your strategical options. I'll focus on the plats (bashira/rubinas) as usual. Rubinas being a kinda cheap mage/expensive healer hybrid if you can time her ability.
One key difference on dmm vs nutaku - the event maps are SO WORTH IT. They have a 100% first drop rate.
http://aigis.gcwiki.info/?%BB%E4%CE%...CE%B3%A4%B0%E8 <-- Keep tabs on this link for this week as they post up info regarding drops/mobs and video guides (usually takes abt a day for the new event info to be posted)