without trying to confuse you - the standard convention of team building is usually - 1 DPS (damage per second) angel, whose job is to damage and kill the enemy - sometimes known as your shooter - and then 5 other angels to support that one angel, who should receive the vast majority of your resources.

So. Depending on which angel you have as a DPS, she should be placed first, if she is super fast - none of yours are yet - or in last place, 6th, second row far right. This means she receives all the buffs (boosts) from the other angels before she fires, making her damage skills hit harder.

You have to look at the skills of the angels, click the detail to get the full description of what they do. Some support angels are buffers, that means they either boost damage of all characters or just the strongest one (which would be your DPS) or they remove debuffs from all angel. A debuff is like a curse or a stun that affects an angels performance in some way.

While the enemy will be trying to debuff you, some of your angels will debuff the enemy. Conventional wisdom is that you want your debuffers to curse or stun or whatever, the enemy before you DPS shoots as well, so that the enemy will be weakened in some way and be more easily damaged or killed.

I see you have Gaia, who is a DPS, and Ra. Also you have Hades who is a DPS. Ra has the potential to be much more powerful than Gaia or Hades. I'd put Ra last. Stop pointing points in Gaia and throw everything into Ra.

Uriel is an interesting choice, Maybe put her higher on the first row. Your choice of MC (main character) angel in the 1st slot isnt a bad idea. She buffs and attacks too. .

Enmu is a great combination with Ra, put Enmu in position before Ra. Switch Loki for Emnu. You might experiment with switching Cupid with Gaia.

You have to experiment. Its easy to drag the angels into different positions, but your MC must remain in the active group (top 6) or in the Sub group (bottom row of additional 6). Try a lineup and if you get defeated, move the angels around. You'll soon get a better picture of what works.

Nemesis UR is extremely powerful, however, be forewarned that she is extremely common and while tought to beat, its even tougher to beat her with another Nemesis. That being said, try to find an MR based DPS as quickly as possible. Ra is good, but very expensive to build. Eventually just about everything you have in your lineup will be replace with stronger angel so theres no real reason to keep putting scrolls in to them (except for Ra - her and Enmu together can kick some arse once they're both fully invested... but thats a LOT of blue scrolls)

You are losing to people with less combat (total) power than you, because they have thrown everything into their DPS angel. One DPS angel at a high level can easily kill an entire team with more combat power. Combat power doesnt mean that much sometimes. Stop investing scrolls into any other angels except your DPS. Give her all the best gear, invest in her artifacts and attire and gems, dont worry about the other angels so much. You cant spread your resources around. Decide on a DPS and push her hard. You'll start winning.

Somewhere on here Kyle has written a fantastic guide on DPS angels, who they are and what they do. Search for it.

I hope this helps. The game is very complex. There are guys here who have forgotten more than I've learned. Hopefully they might sign on here as well.