Talk:Re:Monster ~The Goblin Reincarnation Chronicles~/@comment-33040866-20170906022828/@comment-30530564-20170906064738

There's an slight explanation both here and on Re:Monster_Game:Units, tho here is the answer you need, pasted straight from it:

"Only Units with in the corner of their portrait can evolve.

The number of equals to the number of times the unit can evolve.

Units with in the corner means it has already evolved, the number of  indicates how many times this unit has evolved.

There are no means from which a unit with no can evolve, no matter if it has reached lvl 100 or met any other requirements."