Strung Bludgeon is a Legends of Idleon item: dropped by 1 monster, recipe, used in 1 recipe.

Strung Bludgeon | Idleon Toolbox

Strung_Bludgeon

The result of letting heat and sand get it on if you know what I'm sayin. NOTE: This is a very rare drop from Sandy Pots

Glass_Shard

Sleek_Shank

Polished_Bludgeon

The full filtration process also involves filtering the diamonds through a vat of diamonds before using those filtered diamonds to filter the water! If only they'd filter their filtration process through diamonds so this item description wouldn't be so long.