Since Trident is basically a modified supersteel spear, it would make sense if it also had a tight damage spread like normal supersteel spear, since it already shares some of its other properties, like precision bonus and lack of crit damage bonus. 10 minimal damage for a total of 30 is very low for a spear, it should get buffed a bit. I think increasing it to 15 for a total of 45 minimal damage would make sense without making the weapon too overpowered.