So I don't think These cards have been used that much until now. I tried to use fleet to enable big AoA+13 damage combos, but vanguard is probably better for that. So any idea on what we could do with these that wouldn't be underwelming? Escaping warriors with elvish scamper is strong but I'm not sold that it is worth fleet's price.
Fleet is probably best for Escaping Runs, Sprints, Dangerous Maneuvers and Healing Dashes. It also should go in pair with Traveling Curse if the 2 armor works the same way Ethereal Form does. As for the Blight, I didn't try it but, maybe a Gene Therapy build? It sounds like just the way to use it. A gimmicky way of using Blight would be to make it move into enemies while being tanky as all hell with all blocks on the planet, and having a fire wizard with Flame Warpers at bay. Priest can be equipped with Silver damage. This way you're benefiting from 5 attachments.