my gf and i pair graviton bomb + striker all the time. its a great combo because the charge atk from the striker is rarely used and actually incredibly powerful.
but yeah we do use blizzbrand more often. its just more useful because you can have re-bomb and re-freeze, but the vile strikers good on the jelly palace cause you can easily kill 4-5 slimes in one charge, where freezing them is less important than getting rid of them.
Umm. I wouldn't pair a striker with a graviton bomb.
pair it with a burst-fire weapon.
E.G. = Graviton bomb bundles, Glacius charge attack deals damage and freezes, preventing re-scattering.
That's the best combo imo.
Your options for graviton.
1. Glacius (best option, ele damage)
2. Levi (second best option; normal damage)
3. Barbarous Thorn Blade (Piercing damage option)
4. Acheron (Shadow damage option)
Glacius could be subbed for a combuster or fang of vog, but Glacius is really the best option imo.
you could MAYBE sub levi for troika... when they release a 5* version.
There's no sub for BTB for piercing damage.
Acheron is your only shadow damage option, gran faust takes far too long to charge.