@Crusader Lord
Disguise or mimicry would be much better honestly charm is so hard to quantify in words
Alright! So basically I switched out the charm thing for a "copy abilities/items" skill with the theme of 'recreation'.
She can make a recreation/copy of items, and also recreate/copy the capabilities (aka: skills/techniques/powers/abilities) of others, as the effect of this skill by just perceiving/seeing them. Her senses and mind record the info and analyze things passively as a mechanical means for her to be able to recreate stuff at all, and basically doing that will never be a problem.
The hard rule is, however, that these 'recreations' both object and capabilities are always inferior to the originals and lose in a straight match of power. Like if you observed the spear-fighting skills of a guy, and then he got better years later, you'd only be able to recreate 'the skills that person had at that point in time' you saw him before and would have to go observe the guy again to be able to be able to recreate his improved skills. Either way if you tried fighting him with a spear and a recreation of his own skills, you'd always lose in straight up match of just his spear skills vs your recreation of his spear skills.
Further, something like a divine blessing given to or inherited by a specific individual can't be recreated. Certain powers like 'can shoot out webs cause they killed enough spiders', techniques that can be learned such as weapon-wielding techniques, skills like sewing, etc, can be recreated though.
Likewise and more so limiting this power is also the wielder's state of evolution, or the strength of their soul, so the stronger the wielder becomes through evolution the more powerful the objects and capabilities they can actually recreate. As a base goblin, for example, you couldn't recreate the skills of a hobgoblin or an item that only something stronger than a hobgoblin could wield for one reason or another...but could do so when it comes to other goblins and the things they can utilize or own. Or if a hobgoblin wields a weapon or shield or other item they made as or could still wield as a goblin, then a base goblin with this power could recreate those objects in such a case.
As a base goblin, these objects and capabilities only last for five minutes at most (aka just five minutes outright every time and then suddenly disappear) when recreated. On the other hand, this skill can always be used to recreate stuff over and over so you can spam copies since they are already naturally inferior but good-quality copies. :P
Finally, as an aside, in the specific case of 'recreated objects' there is another catch. If you 'overload' them with magical energy, then they can very very briefly match the power of the original item they were based after. Very, very, briefly. As a result, however, they are outright and immediately destroyed in the aftermath of using them in such a manner.
***(Sorry for this being so long and detailed, but I felt it'd be good to just tack on proper limitations to balance it...all whilst leaving it rather useable in its own ways in the short and long terms :D)
If this idea doesn't work then just tell me, or perhaps help me with suggestions for skills perhaps? I based this one in particular on her cosplay antics in her prior life, basically. XD**