I just made a slew of Haze Bombs in an attempt to get some good UVs, and here's what I got:
-Damage vs. Construct: Low (x2)
-Damage vs. Gremlin: Low (Virtually useless because of the Gremlin's resistance to Ele damage, planning on scrapping this one)
-Damage vs. Slime: Low
And, finally:
-Damage vs. Construct: High
I think the last one would be valuable in some of the bomb's later forms because of the Construct family's native weakness to Elemental. So how much would these be worth to the average buyer?