@Spinny  
I can think of times in the show where they made fun of a spell like this by having her have it, and having it turn out to be completely useless.

@Background Pony #98DD  
I’m saying, investigating a crime scene is a very complicated and time consuming affair, and if this spell could be used for that, it could both expedite both discovery and delivery of justice.

@Poptard  
Because “all crimes forever” involve the theft of body parts…

Well, Twilight just solved all crime forever, since you can literally go back to the scene of any crime to figure out exactly who the culprits are.

wing-ectomy is a term now.

 
Hello!

@Spinny  
It wasn’t so bad during S1; back then half the time Twilight’s spells would explicitly fail or screw up (like that time she tried to use a fix it spell against the random stuff happening at the start of return of harmony)

I’ve always found Twilight’s near-infinite arsenal of spells to be rather irritating.
 
For one thing, it makes her friends seem utterly worthless without her, since they clearly can’t do even a fraction of what she can do. For another, the writers will nerf her only when it’s convenient for them, such as how she was useless against the Smooze in Make New Friends but Keep Discord. She barely seemed to put any effort into getting it under control, and that was likely only because of how much more convenient it was for the plot that she couldn’t stop it.
 
In any case, this particular spell clearly has absolutely nothing to do with trauma, despite its name. This is quite literally a ridiculous plot device to allow Twilight to know details that she wouldn’t know otherwise. I can think of several instances in the show where her having a spell like this would have cleared things up much quicker then it actually was. Once more, she’s proved just how invaluable she is to this cast, and likely how expendable her friends are at the same time.
 
Oh, and also, Twilight has clearly just become the greatest investigator in all of Equestria. I sincerely doubt anyone could get away with murder now (assuming murder actually happens there).

Thinking about it, you’d really think this sort of thing would be more common of a crime. I mean, these are seemingly just some no name unicorns out of nowhere, not like twilight or sunset or even starlight. You’d think lots of evil unicorns would be mugging pegasi and stealing their wings.

@Background Pony #F833  
To be fair, twilight is a universal caster, and those are very rare. It’s likely that she learned many of the spells from Celestia’s school and was able to perform them, while the rest of her class was able to cast only a fraction of what they learned as theory.

@Swashbucklist  
That was a damn impressive feat of mental gymnastics to make this about Spike. Bravo.

@Spinny  
If only she didn’t. The writers would probably have to come up with a variety of magical properties to associate with Spike’s fire breath, thus giving the cast a challenge to work through, and giving Spike a f’king reason to be there.

@Parallel Black  
To be fair, Twilight knowing an obscure, absurdly specialized spell is entirely in character.

@Tumblr Feminism Is A joke  
I see what you did there.

At first I thought this was some kind of all-purpose forensics spell to detect magic residue and track down spell-casters (didn’t Harry Potter have something like this?) but with a name like “Traumalocator” it seems to be for tracking down missing limbs specifically. Doesn’t seem like this would be useful to often.

How incredibly convenient.

@YuwenTaiji  
Wind Rider didn’t cast any spells on the note to Spitfire, so this locator-spell would have been useless.

@YuwenTaiji  
This is why Twilight doesn’t get as many eps these days.

tfw Rarity Investigates could’ve gone 1000x more easier…

@Spinny  
This is exactly why people say unicorns (and specifically twilight, starlight and sunset) are OP as hell.  
The writers keep introducing spells that are basically “Does EXACTLY what you need to do at this moment” when there’s no reason for such specific spells to exist except to let a unicorn pretty much negate a problem :/

@Spinny  

 
No obviously their Equestrian Citizens so Twilight can’t just stop them with her uber magic

Good Lord…
 
Where would the mane six be without Twilight’s magic, now giving her crucial plot details that she has absolutely no right to know?
 
I suppose there’s absolutely no reason whatsoever why Twilight couldn’t just teleport over to them, zap them all unconscious, return with Rainbow’s wings and be done with it. Only reason this wouldn’t happen is because they still need a plot for the remainder of the issue.

I’m not sure if traumalocation is a real word, but what a useful spell you never mentioned before Twilight :o

“But i’m totally not going to use my wing giving spell to give you wings, so there!”

DICORD