Board Thread:General Discussion/@comment-71.189.250.111-20130308065816/@comment-6182229-20130405103647

That's why I wrote "couple" with "". It doesn't have to be an actual couple, more of a sets of monsters. Let's say 5 elemental spirits (water, fire, earth, metal and wood) - when assembled they activate a yin yang skill that does something cool. Or a set of rarity 1-5 deamons.