The idea of the game itself is interesting and the mechanics are simple enough for the game to be played and understood fast. The art is really good and the music and sound work really well with the game. But it needs work communicating those mechanics to the player, and sometimes the feedback regarding the state of the weapons or how many blows they need can be confusing. I didn't knew that i could burn the sword until my second session. The speed of the hammer seems random and the messages of the clients don't seem to be relevant regarding of what i have to do with their weapon, since i'm doing the same actions, just with more perfectionism in mind regarding on what state they came in, without much variation.
Overall, is a solid jam game and it has potential to improve a lot more. If it happens to be revisited, take a look on the communication of the mechanics, make better use of the messages of the clients and, finally, add more variety regarding on what to do with the weapons.