Just incase my sarcasm was missed... the answer is nothing. They come from nameless island.
Just open as many OBB as you can /kappa
Yay another SV box price spike!
When the price from Silvervine 100 box become 1m+ players stop buying this daily and just buy for get headgears.
reasons? Alchemist coming next month, players will buy slims and the price will be the same than buying whitepotions from NPC and strawberrys for 1k e/a