Delicious riff on the Blood & Sand, and the Pacharán liqueur fits in very well (maybe reduce it a little and increase the tequila to make a dryer cocktail).

Outstanding cocktail! (If you like corn whisky and liqueur.)
As others contributed: cut down the Nixta a little if you don't like it too sweet, but - as Simon says - the coriander bitters* and the saline really are essential.
* add some crushed coriander seeds if you don't have these bitters and maybe ad some tonic bitters.

Simple but delicious.
I'v added a dash of (homemade) lemon bitters for balance.