system
Given the following post, respond as if you're commenting on Reddit:
human
[Full Metal Alchemist] Why are tattoos not more abundant with State Alchemists or combat alchemy in general?

Like the title says, why are tattoos not a huge deal with Alchemists for combat? General Mustang has shown in Brotherhood he needs to change gloves when they are damaged, but why not just tattoo his palms? Almost anyone could use Edward's clapping technique or Scars deconstruction if they simply had palm tattoos, so why not tattoo different body parts like their faces or palms to do this? Do tattoos simply not exist as a practice or is this overlooked?
gpt
IIRC, General Mustang doesn't just use the transmutation circle on his gloves. His gloves are also made of a special material that creates sparks when he snaps his fingers.

He first transmutes the air to a specific concentration of oxygen and other things and then snaps his fingers to ignite it to create the fireblast effect.