How to evolve Diglett in Cobblemon.
Diglett evolves into Dugtrio when it reaches level 26.
Evolution line
DiglettWhat Diglett needs
1 path
DugtrioLevel up
Level 26
Moves it learns on evolving
Sand Tomb
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Diglett nowground265
Dugtrioground425
Base stat totals, from the Cobblemon 1.7.3 species files.