If u want to create fantasy names with Aztec-sounding influence
use alot of T,z,x,ui,h and c's.
And keep the single a,e,i,o,u's a bit down compared to the other letters of the alphabet.
You could get something like Uixasli or Iztlichoses, Qutecuiar, Yotzhuidarex.
Lol, aztec names really look alien, but if thats what youre going for, do it.
Surely it sounds creative