Eku (5e Equipment)
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Simple Melee Weapons
An eku is a large, often wooden, paddle-like weapon. It started off as rowing oars used by sailors to defend themselves in the event of an attack, but it has since splintered off from its origins and has become its own distinct weapon. An eku can still be used to row a boat, but it is more difficult and the boat will not be as fast. The wielder of an eku can strike with either the flat section or the ridge, and sometimes the ridge is even sharpened and metallic.
Special. You can attack with the ridge of the weapon, dealing slashing damage, instead of bludgeoning.