Tidefall is a unique great sword in Pillars of Eternity.
||A Rauatai harbormaster tired of officiating disputes between the various sailors, merchants, and pirates that daily made use of his port. The rowdy visitors caused trouble with the locals and with each other, leaving the harbormaster forever cleaning up their messes.
He was large, even for an aumaua, but soft-spoken. So he commissioned a local smith to forge the kind of sword that would do the talking for him. He took to patrolling the docks with it, relying on his own towering presence and his formidable blade to silence most arguments. He issued a mandate that any visiting sailors at port that did not conduct their business peaceably and depart with the tides would find themselves subject to his own mercenary justice. Disagreements were settled quickly and quietly after that.