User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-17735225-20160901103625

Finally managed to solo Silverwind X (brag lol). I'd made the horrible mistake of thinking that the second one only spawn after the first one is dead(I'm not good enough to sub 10 min the first one yet) and not bringing smoke bomb. It's totally doable though even wasting time running for my life and the second one having horrible AI routine it only took 30 mins. It might have to do with Black S having really good defense (going in with 591 def is pretty nice).

Talking to armory granny from MH2 about Teostra Powder gives me PTSD. Back then Teostra powder was a 8% from breaking high rank Teo's wing only, it was one of the worst item to farm and a lot of good armor sets need tons of them (Even Rathian S need 5 of them to max out). It even got a (less BS but nonetheless horrible) successor; Hellblade powder.