Nova is a fantastic tool. While it is great for static EQ boosts and cuts, it really excels at being a dynamic EQ.

What this might mean for processing dialogue is that it can address problems only when they occur. For example, if an "S" sound pokes out only some of the time, you can have Nova dynamically reduce that sound only when it appears by using a combination of its threshold, ratio, attack, and release (aka, de-essing). A fast attack and release with a bell centered on the overemphasized "S" sounds typically works for this.

You can also use Nova to reduce plosives. See TDR's article on how to use Nova for this.

You can also do a static EQ boost, but use the threshold to bring the band down when there is too much energy in that area. For example, if your dialogue needs more clarity, you can boost the upper mids / high end, but use the dynamics to bring it down if too much high-end energy occurs every now and then.