I comes to my mind that the LE Rare monsters like Henry, Adele, Constance, Charl are so much rarer than the unit type.
I notice and I analyzed it well because I check the list of monster recruited like Minerva or Vampiress is less than 100 of counts, Minerva I think is only 20 and Faith monster is about 50 I think.
The question is how if all 20 people recruited Minerva which is only 20 of players rewarded by it. Then is it ended up with no Minerva monster at all, same goes with Faith and Vampiress.
I wonder about it.