Board Thread:Question and Answer/@comment-216.232.130.49-20160420201533

So something just came to me during one of my farming sessions. I've been playing for a long time, and I'm surprised I noticed this just now. Sometimes, whenever I fight a battle, one of my comrade's cards comes in to hit during the first turn. What has been boggling me about this is what factors influence which of your comrades assist you, and why does it seem like it's limited to one or two of their cards when they do? It also seems to me that there's a small pool of comrades that actually come in to help, though I think I may have some idea as to how that works (level?). The cards that come in to help you seem to be different between AUBs and Archwitch/regular battles. I know this for a fact because I have had an alliance member, which is also a comrade of mine, display different cards when assisting.

Is there some kind of stat variable at play here? Level? Comrade age? Is it how much you visit them? How much you love them? I really don't believe it's a simple case of RNG. What do you guys think? I think I'm missing something here... 