Ishya_Chan
You can use two spirt abilities at the same time though fusing the rings to combine an strengthen 1 ability is a rare talent up there with twin spirits, i think your discipline of fusing the abilities is fairly unique and might be difficult for someone without training to do so but might still be possible for others
Well author I know what I'm going to say will be quite offending. But WHY THE HELL are you making every supporting character OP. Even in the original Tang San didn't give them Mysterious Heaven Technique and let them use yin yang pool but you are making all of them absorb ring of more years that is possible. It's kinda ruining the fun you know if it's going to be like this but as big as a fan of Douluo Dalu I am I can't read this. I know authors don't like this complaining shits but I'm really a big fan of Douluo Dalu and seeing people other than him being OP kinda feel frustrating. I know you can say he is still OP but according to common logic his 2 friends are monsters comparable to Tang San or even more because of his help to let them absorb rings of longer years than they can and don't even get at the point where others found out about it. Thank You and Sorry for the story till now.
And Author if you can have them normal rings configuration from now on that will be really helpful and I'll be really grateful. They already have an advantage over other by getting their second ring of purple. If you want to somehow make them stronger you can make them absorb them ring over the limit but in the same colour. For example the third ring limit shoul be 4000-5000 years you can make them absorb 6000 year of spirit ring something like this. And pls don't make them have black ring as 4th spirit ring. Kind of lame of me to say all this but what can I say there is abysmal amount of ongoing Douluo Dalu fanfics.