Quote Originally Posted by Saeleyna View Post
Anyone know exactly what Iwanagi-hime's buff does? I know it says counterattack, but every time I've used it it's done literally nothing. Is it simply a low activation chance or something?
It does Counterattack. In Nutaku terminology, that means "the lower HP = the more damage you gain from the buff"

You're probably mixing it up with Intercept.
Quote Originally Posted by Saeleyna View Post
Also, do tower medals reset does anyone know? Still sitting on ~10k as I'm not sure if I care enough about the brick given that the only thing I can really use it on is Gaia's weapon (have gotten 3 copies of the darn thing through jewel gacha).
They don't reset. But don't waste it on Gaia's weapon. Bricks are best used on SSR Hime weapons that either gain a third skill from their FLB or a second Assault.
Quote Originally Posted by Saeleyna View Post
I mean I could just hold on to it as well of course, but I feel like considering my fire and lightning comps only have 1 SSR each the influx of jewels/tickets might be more useful xD.
... no. A brick is a thousand times better, don't even consider the waste of perfectly good Medals on effectively nothing. Yes, you might not have anything to even brick right now, but you'll be thankful when after two more Towers you've found a good FLB Hime weapon and have your bricks ready.