Lifesteal on Alure and Deliana isn't great. Doubtful either is doing enough damage to justify that set over others, and it likely means you're really capping the stats both can hit. You do want speed and accuracy on both, however. Stun set is the one on Deliana I could see being good (in non Drex comps) and be willing to give up stats, but I just don't like Deli there in general.

If we're going to try to AoE nuke, are you putting defense down on first?

Brute force AoE is a viable strat, if you can get your builds to a certain level. There is a point where your champs will hit hard enough you can't put in AoE attackers cause they'll kill spiderlings before you can get the HP burn off from them.

I hear some questions and suggestions about speeds, stats and such from others here. So basically, this is the point I would start a new thread, and please post the builds of each champ that's in this recommended comps. We can look at where your stats are and make recommendations for the bottom basement speed, defense, HP and accuracy on these champs, and things like Alure needing 100% crit rate.

I encourage you to do this because the gear SETS you use are largely inconsequential to whether you can finish content. So while you're asking to see if you need more lifesteal, accuracy, or speed sets, some of my champs aren't in any sets at all, because the substat rolls and minimum numbers matter rather than the sets. 

We'll try and help you get it done, although the recommendation may be something like "we need to farm more gear in dragon" or "can we make more gear in the forge" or it could be as simple as "get everyone to 170+ speed"