Almighty Ruiner

The Almighty Ruiner is a treasure in. It can be found in the Pollution Pool, which is the third main area of the Ravaged Rustworks. This treasure looks like a regular pair of red with some black near the cutting part.

Collecting the treasure
Next to the first bridge fragments, a vine leads into the water. Just to the right of the vine, a line of Sparklium Seeds dips down, showing off a dirt block. Blue Pikmin can be obtained by continuing to move right. Once they have, return to break the dirt block. The treasure is located next to a Starnacle below the block.