You can make a pretty banger team if you can get the right combo of OG and Alters. Eyja and Chen Alter pretty much have your high ground covered. Nearl is a pretty good defender, with Noir being a very cheap defender to throw out before you have collected enough DP. Specter's got your AoE melee covered. Healing is covered, Skadi buff is insanely powerful, Texas and Yato alters are great fast redeploy nukes. Looks like the biggest weakness is the DP generation. If only there were a Myrtle alter...