Below are a starting roll tier list and an overall tier list separated by color. Keep in mind, The starting roll tier list generally factors in friend finding, early game, and how non-iap friendly or powerful a leader becomes if a key sub was rolled. On the other hand, the overall tier list instead is based on overall strengths with nothing restricted except practicality. The overall list has a tab for leader and a separate sub rating for each monster. I've found the resources to be very useful and to be taken in mind despite some minor differences in monster availability between NA and JP. Links are below Google translated for those that can't read Japanese. Starting Roll Tier List Overall Tier List Also, a funny tier list derived from an archived 2ch thread. I personally agree with Rodin and a savescumming Anubis as SS tier. I hope the tier lists are somewhat helpful when seeking help on monsters' strengths. No tier list is perfect though, so use it for reference to form your own opinions.