Ok can someone help me out here...How do I get weapon aug streamstones? Are they just extraordinarily rare?
My Method:
Tempered Tier 2 and 3 investigations all god damned day.
Odogaron (11), Pink Rathian (5), Azure Rathalos (6), and all the elder dragons (15).
Results:
3 warrior's streamstones and 1 Hero's streamstone
My decoration situation is looking really nice but I REALLY want to augment a couple weapons.
My Hero's Streamstone was for Swords so I can aug my Bazel LS or I can make something else. Is there a "best" rarity 8 Longsword? I'm not burning this on a greatsword because I'm terrible with that thing. And if the Bazel one is reasonable should I go Attack or Affinity (it would negate it's 10% penalty)?
They're very rare. Just RNG. You need to get them from Tempered Investigations.