How to evolve Hattrem in Cobblemon.
Hattrem evolves into Hatterene when it reaches level 42.
Evolution line
What Hattrem needs
1 path
HattereneLevel up
Level 42
Moves it learns on evolving
Psycho Cut
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Hattrem nowpsychic370
Hatterenepsychicfairy510
Base stat totals, from the Cobblemon 1.7.3 species files.