This discussion gained momentum pretty quickly.
Focusing resources (especially weapon skill enhancement) on a single element for mid and late game has the following advantages:
- You only need to farm a fraction of the content to achieve full potential
- You can build up a versatile team with good access to debuffs, a main bottleneck in KamiPro
- You can use variations of the same team for all content, so it's a lower learning curve
- You can easily build the team into a juggernaut with 1-3 Miracle tickets
That's why I recommend it in my guide for beginners. This discussion about max damage potential is sort of besides the point. What I'd like to see is a comparison of the progression tiers between the mono-team method and the rainbow SSR method. Given finite skill enhancement resources, how do these teams compare at various levels of investment? I have a weapon enhancement tool that should make this comparison straightforward.
Also, with the introduction of Accessory Quests, and eventually Ragnarok Disasters, is it even practical to farm every element simultaneously? Even for those who play around the clock, I'm not sure AP regenerates fast enough to farm Accessory Quests, farm Daily Quests for materials for Accessory Quests, and get max rewards in every event. And even if it is possible, seems like the game becomes a full-time job at that point.