Hi ! i am trying to make a power grow for IM , i dont want to grow it now but it should be funny to try to find one that fit with him cuz i couldnt .

Well first things first it should be related in some way to your first powers, that being said, I will see if I can't help ya out.

I would like to see him get an external power growth, you mentioned that his body takes out useful materials, what if those materials changed his flesh into something stronger. making his flesh like an armor. particularly against the acids of your mouth bt also helping out greatly in a fight or even fending off wounds?

I was thinking in something like a eater ... for example he could be able to eat even the soul of his victims , or air ... when i created him i was thinking in the possibility to ¨eat ¨ air , if he could take all the air in a room the people here well fall unconcious but these things are related with the way he eat . cuz his saliva is the one that allowed him to eat everything .

Well let's see. Considering your mutation centers mostly around you're mouth, that's probably the best place to start. Here's a few things that immediately come to mind:

Sharpened teeth, whether through a one-time change in shape, or through a permanent ability to sharpen and dull them at will. This mainly runs along the lines of adding more damage to a bite before the corrosive saliva takes effect. While he can dissolve just about anything, some materials certainly take longer to melt than others. A sharpened set of teeth would increase the damage some as the corrosion is set in motion, and it also adds a penetrating effect. with the teeth sinking deeper into an object, the saliva coating the teeth is also pushed deeper as a result, possibly speeding up the corrosive process.

On the note of sharpened teeth, there could also be a reptilian effect. Either a single or pair of fleshy sacs could be developed somewhere, perhaps on the underside of the tongue, or above the palate. The saliva could collect in these sacs, much like venom in some reptiles, and it could be injected through the teeth as Iron bites down. On the other hand, it could also be used like a spitting cobra. Rather than injecting the saliva, it could be shot out in a short distance spurt, splattering the intended target.

Also on the note of reptiles, a jaw that can unhinge would be useful, especially in the biting department. Larger bites mean more damage. I think this was mentioned at some point in the Cbox, one main issue being the possible resulting lines in the cheeks, somewhat like the Joker, though on a lesser level. I've forgotten the technical term. But, should it be a naturally occurring mutation, maybe the skin could simply stretch to the required width and then revert back to normal, like an elastic band.

Another idea is a longer tongue, the length of which could be debated. A nice long tongue coated in that lovely corrosive saliva can do a good deal of damage. A tongue is more flexible than teeth and jaws, so depending on the length, a larger area could be affected. Perhaps the taste buds could even be a little bit spiked, kind of like a cat's, a lion in particular, which uses it's tongue to literally lick the fur and flesh from its meals. Being able to scratch layers of skin away from a person, or even layers away from any other intended target could increase the rate of damage when coupled with the saliva.

And that's about it for now. If I think up anything else, I'll be sure to add another post here.

Isa is GlasGow smile or Chelsea smile

Favourite Glasgow smile Quote from Wiki ¨In the murder of the Black Dahlia, it was noted that the body was given a Glasgow smile, which also could have played a part in her death along with her body being cut into two.¨

[cuz what i am a vampiric freak ]

Vampire the masquerade Serpentis
The Tongue of aspid.
The Setit can extend its tongue at will, further divided into two as those of snakes. This appendix may reach 50 cm, and melee is a terrifying weapon effectively.

The Shape of the Cobra.

The Setit may change its shape to become a huge black cobra. The snake weighed as much as the human form of the vampire, extending to over three meters and taking the thickness of a human leg . The Shape of the Cobra gives several advantages, including a poisonous bite, the ability to slip through small holes and a nose much higher than normal

Vampire the masquerade Quietus or Extinction [in english in the spanish version]
The caress of Baal
It transforms the blood into a substance that destroys the flesh with the mere touch. in the evenings of langsyne , when the charges of Assamitas led the legions of the Saracens, it was often to see these vampires licking their swords to cut their tongue and spreads the steel with this terrible substance.

Corrosive blood could be cool , just like a Alien but the acid would melt the veins and the wound would close really quit .

This likely isn't the best time to post this given my intoxicated state, however I feel that in regards to IM's case a different approach should be used, specifically by taking a leaf out of the Naruto universe you could additional mouth's to the characters hands, these would have the same properties as the original mouth on the head and could even be expanded to include any of the abilities noted above.

That's all I have to say for now, maybe once I'm sober I'll add more but I doubt it.