In this screen I was attacking the Slime on the right side with Packet logger turned on.
The Auto attack is called aa while the class skills were ax
In this screen i noticed the m:x that the x was declaring the index number every single monsters in the map, no they're not monsters ID, Slime ID is 23. And these index number are different on every maps and on every single monsters.

And in this screen, I was attacking the slime on the left, and of course the index number has changed.
What i was looking for is how to attack random monster in the room using packet while following the proper skill orders. I've experimented this with Infinity knight and with all the helps from all the Great functions in Grimoire, it worked just as i expected. But sadly

it only attacks the monster according to the index number on the packet that I logged. But somehow i need to make it attack any monster in the room using packets. Any answer would means alot but no Troll/Silly answer lmao