Numbering of Arkadions

How do you guys know that a monster is a certain number? In other posts I saw people saying skullrex was like number 26 or something. 

Moved your topic to FAQ, the section for general game questions. The “Where’s that monster” section is only for figuring out how to obtain specific monsters.

As for your question, the Monsterpedia numbers monsters. They’re using the Monsterpedia number.

Oh sorry. Thanks though!