Weapon has been narrowed down to 56 cards now, which is not great, but with our 5 questions left (and perfect guessing), #8 gets 28, #9 gets 14, #10 gets 7, #11 gets 4/3, #12 gets 1/2. So it's not impossible, but also not likely that we get exactly half each time.
Now, I've been assuming it can be a character (not that it makes much sense, but just because I
really don't want to make the same mistake twice).
If we ignore the characters we're left with just events, which means we could start asking about phase. Ignoring the characters also brings us down to 39 cards, meaning #8 - 20/19, #9 - 10/9, #10 - 5/4, #11 - 3/2, #12 - 1/2. So, if we eliminate characters, we definitely have more of a fighting chance, but I'm just having flashbacks to "Huh it's not a possession, that narrows it down" to "Crud, it's not an artifact either; back to the drawing board." I think a nice next question would be "Is the weapon Gondor
or Elven
card?" Regardless of whether or not characters are in the pool, that splits it fairly in half (if yes with characters, it will leave us 27, no with characters leaves 28; yes without characters gives 18, no without gives 21).