So the title asks it all - I have a bit of backstory if your interested into why I want to know how much damage a collapsible bathtub does it doesn't really mater but I'm curious as to people's thoughts on this manner
I'm currently playing an unchained summoner (story summoner archetype), and happen to have chosen an eidolon which has high strength and no weapon proficiency. Due to the fact that its natural attacks just fail against something that has protection from [current alignment] I wanted the ability to have a weapon, due to unchained my evolution points are fairly limited and I honestly would like to avoid spending 4 of them for a decent weapon proficiency and if I have to spend a feat I'ld rather spend one on making it's attacks far more interesting... so I am now asking how much damage does a collapsible bathtub do?
"To determine the size category and appropriate damage for an improvised weapon, compare its
relative size and damage potential to the weapon list to find a reasonable match. An improvised weapon scores a threat on a natural roll of 20 and deals double damage on a critical hit. An improvised thrown weapon has a range increment of 10 feet."
I have an idea of what it should do - but I'm not posting that as it might bias what you guys think about this rather silly weapon's damage die