the Blade of the Ruined King is built from vampiric scepter+pickaxe(bilgewater) right, so when you click certain item, on top of it, there's suppose to be a item that can be built from it.
This is the place where i see problem, i normally click the the item under it to get the big ones. like for bloodthirster, i would search for vampiric scepter then search for BT on top of that. However, Blade of the Ruined King is not shown when vampiric scepter is clicked as a upgradable item(?) and i like this to be fixed unless i'm missing something.