You need a few regular/gleaming ones for augments later, but you get a lot of them, so feel free to use them for deco rituals.Does it make sense to spend Streamstones (Shards,regular, gleaming) for the Deco ritual or do you need lots of them later on?
Did kushala with a elderseal weapon and he still had the aura all the time. I hit him in the face and he has the aura all the time. I don't get it.
Anyway his broken materials being stuck inside the hurricanes he leaves behind is infuriating :(
I felt like it was even worse without it though. Poison also apparently supresses it, so I go with poison and give my cat elderseal
So basically, Elderseal works like a status effect. Each hit with an elderseal weapon applies some of the status and you build it up until it triggers. Each Elder Dragon that it works on (it has no effect on Nergigante, Zorah Magdaros, or Xeno'jiiva) has an ability that has multiple levels. What Elderseal does is that it lowers the current level of that ability, but does not negate it. This also means that, if Elderseal activates before the Elder Dragon has triggered its ability, it does nothing.
For Kirin, this is its Thunder Armor that hardens its body and enhances its thunder attacks. Elderseal will reduce the level of its armor, softening its body again.
For Kushala Daora, this is its Wind Aura. Apparently, Elderseal will also slow Daora down.
For Teostra, this is the Fire/Blast Aura. Teostra's Blast Aura is a new addition to MHW, which is visually depicted by a bunch of orange sparks around it, as opposed to the Fire Aura that has Teostra on fire. The Blast Aura causes Teostra to scatter its explosive scales with every action, and has been commonly perceived as some kind of "near death" mode. It is merely an alternate form of the Fire Aura. As an additional note, the condition for the use of the Super Nova is for the aura to reach its maximum level, and not the end of rage mode. Repeatedly applying Elderseal will prevent Teostra from using its Super Nova.
For Vaal Hazak, it diminishes the amount of Effluvium miasma it has stored. This weakens all of Vaal Hazak's miasma based attacks. Unlike the other Elder Dragons, Vaal Hazak's miasma doesn't work on a level basis, it seems that the game instead keeps track of the total miasma that's been generated and absorbed by Vaal Hazak.
So, it only specifically works on one ability that each Elder Dragon has, and does not negate the usage of that ability. It only weakens it.
The poison trick for Kushala is an ancient "feature" since the PS2 era. His wind aura is a "status", and you and monsters alike can only have 1 status applied at a time, so if you poison him he's stuck in poisoned status and can't apply his wind status