I've spent the last couple of days planning out how to beat her with my resolve team. I've got most of the kinks worked out, so feel free to take a look at my most recent strategy guide and the other guides. I've temporarily stickied all of these threads in the Tips&Tricks forum for easy access: High level thread that has all the basic strats: Contains all the basic builds. http://puzzleanddragonsforum.com/showthread.php?tid=842 Damage Resist strategy: Ama+Odin or CDD+Odin: Cheapest build because you only need a CDD. http://puzzleanddragonsforum.com/showthread.php?tid=950 My Resolve strategy: Has details on how to approach every fight. It's tuned so that you have to do as little matching as possible. http://puzzleanddragonsforum.com/showthread.php?tid=2128 Wiki: All the stats you need to know about the Hera dungeon. Google translate is your friend. http://zh.pad.wikia.com/wiki/%E3%83%98%E...D%E8%87%A8 --- My review of the various strategies: Valkryie/Viper: More risky during Hera fight, but will clear 1-4 very easily. It is a skill based build because no gems = death on Hera. I'm pretty sure you don't have to care about permutations of monsters or whatever with this team... you just beat them all to death. This is the build I recommend if you want to match gems and blow stuff away. You will need a high leveled team to beat this quickly though; if they are too weak, you may just die to demons (50k hp, 2.2k armor). Viper/Amaterasu: Most risky upfront on stage 1. Rest will be easy. The last fight will be fast and skillless because you are blind matching. The permutations of the monsters matter, and your team is basically garbage that can't do anything else besides follow the preprogrammed schedule. It's a gimped team that is designed to win with the least effort, so if something unexpected happens (although I try to account for everything in my guide), you will lose stones or be forced to restart. I recommend this build if you are a mathematician and want to guarantee victory through preplanning. Odin/Amaterasu + 16.5k hp: Well, this is easy mode. Depending on the rest of your team, this fight will either be short or take forever. IMO this is the optimal build because there is no risk. I recommend this build if you have Odin or Amaterasu. Odin/2Siren/CDD + 8.5k hp: The cheapest build (since you just need a CDD). This is the longest fight, but if you have enough level ups, you can theoretically survive any combination of waves. However, Your lack of damage will make every wave take a very long time to clear (unless you bring a Hera/Hades/Neptune). You have low hp for the first couple of waves, and have to heal constantly during Hera. Let's hope you have enough heal orbs. I don't really recommend this build unless you have 2 near max skilled sirens. But if it's all you got, just go for it!