Knowledge checks are the way to go for this one. At the beginning of combat, players should be pretty well trained to ask "What's the knowledge check for that thing over there?"
Knowledge checks take no action:
Action: Usually none. In most cases, a Knowledge check doesn't take
an action (but see “Untrained,”
below).
Relevant section on the DC for monsters:
In many cases, you can use this skill
to identify monsters and their special
powers or vulnerabilities. In general,
the DC of such a check equals 10 + the
monster’s CR. For common monsters,
such as goblins, the DC of this check
equals 5 + the monster’s CR. For
particularly rare monsters, such as
the tarrasque, the DC of this check
equals 15 + the monster’s CR or more.
A successful check allows you to
remember a bit of useful information
about that monster. For every 5 points
by which your check result exceeds the
DC, you recall another piece of useful
information.
Typically the first bit of information they'll want is "Type/Subtype". They can ascertain the approximate type without the check (it is what determines the Knowledge check after all), but if they don't hit the DC they don't know what the heck it is. Now, another player could make the check and shout "That's an x! Fangulor, murder it!" to get around the problem.
Additionally, the Bane ability says nothing about the Inquisitor knowing what the creature thing is (and heck if it's disguised, they might get it wrong).
In summary, if no one in the group can hit the DC for the knowledge check, the Inquisitor can't use their Bane ability. Unless of course as @Erik and @Ace point out the Inquisitor guesses the type correctly. :)
Sources: Knowledge Checks, Bane Ability
Because of their recharge and shape.
The Draconic Bloodline breath weapon is more powerful (70 average damage vs 54) because it can only be used 3 times per day and affects a smaller area. The Form of the Dragon breath weapon can be used every 1d4 rounds, and affects a 50' cone or 100' line, versus the bloodline breath weapon's 30' cone or 60' line.
Note that as far as I can tell nothing stops you from using your Draconic Bloodline breath weapon while you're in Form of the Dragon; it's not that your breath weapon suddenly does less damage, it's that you gain another breath weapon with lower damage but a much faster recharge and larger area.
From the PFRD (emphasis mine):
Form of the Dragon I
You become a medium chromatic or metallic dragon. You gain... a breath weapon. Your breath weapon and resistance depend on the type of dragon. You can only use the breath weapon once per casting of this spell. All breath weapons deal 6d8 points of damage and allow a Reflex save for half damage. In addition, some of the dragon types grant additional abilities, as noted below.
"All breath weapons", in all 3 versions of the spell, means "any breath weapon you got from this spell, regardless of which kind of dragon you chose", rather than "all abilities you have that happen to be called a breath weapon".
Best Answer
There is none
Other than advancing levels in the inquisitor class, there are no official ways to obtain more uses of the supernatural ability judgment.
The feat Judgment Surge increases the efficacy of an inquisitor's judgments as if the creature's inquisitor class level were 3 higher, but the feat has no effect on the number of times per day that the ability can be activated.
I suspect that the reason that no such feat or magic item exists for increasing the number of judgments per day is probably that the ability judgement is very strong, and any such feat would automatically be the best choice every time it could be taken, but no developer has confirmed my suspicion.