I've watched a hammer of sol and a stormtrance get activated at almost the exact same time, and I watch the hammer lose. Ionic blink is a bastard, by the way. And by active supers, I mean the roaming supers. Golden gun is the second most efficient, but I was talking about an up close and personal battle, where the winner isn't at range.

If the HoS knows about the Stormcaller and they see each other, in no circumstance beside the Titan already being injured will the Stormcaller win. HoS just needs to back up and throw hammers. Now maybe if you had Iconic Blink on, but that takes away two other really good abilities.

I'll have to double check for myself, because both when I get killed in it and when I kill people in it it sure doesn't feel like any damage reduction. The only thing you do get is a full health and shield recovery I'd you activate whilst having grenade and melee fully charged. It has none of hanmertime's health regeneration on kill, which makes your work on their health useless if they kill you.