The new armor is not trash. The rest, yeah pretty meh.
If you're having trouble on attack, even with AoE hack, a solid strat is going high defense and stacking meteor swarm. If you have the Magic INcantation Ring you don't even need to bring shitty Nul to do this anymore. With aoe hack enabled = meteor swarm on all enemies as a quick action.
Load up your agent and heroes with magic attacks to stack meteors to x5 in no time. Works like a charm.
Bring strong debuff heroes that can apply despair, like C&D, Kuurth, Pbeast and the likes.
High attack teams are not recommended for your offense team, as the meta has changed a lot towards high defense teams on defense, and even strong offense has serious trouble breaking through those now. IF you do want to go high offense on attack though, slap a blaster suit on your agent. It's strong as fuck because every defense team is full of bruisers.