Your description almost felt like a copy/paste job, not gonna lie.
As for your question, I want you to explain the theory behind it. One, in relation to AF. Two, the second part of it seems like their are words missing.
Either way, I wish for you to explain your reasoning for your question and theorise and answer.
The technique is explained simply, rather than a copy paste job, I described what it does.
As for my question, This technique quite simply states "
cutting through the spiritual energy of a technique or the soul of a target. Due to its purely spiritual nature" its sheer concept is the severing of spiritual energy to end a technique or cutting the soul of the enemy, Atavistic flame is shown to be entirely spirit based, several of their techniques reference this with wording such as
"
Will to Survive is an empowered state of spirit and soul, strengthening the user on multiple combat dimensions." as Atavistic flame is a creation of purely spiritual origin, it comes to reason that a technique that targets the connection of spiritual energy would work without issue.
The only thing which could be argued is that since Atavistic flames are void of chakra and the technique "
Dangerous Strike" works on a chakra Vs chakra basis when combatting techniques that it might not work, you could also argue that due to the so called absence of chakra that it is a reason why it would absolutely work, especially since AF works on spiritual energy which this technique targets.
You could also argue that on some level chakra is used within AF techniques since the mode "
Will to Survive" takes chakra each turn to maintain and the only reason why the techniques are void of chakra is because it uses the extremity of spiritual energy, whiles chakra is a combination of spiritual energy and body.
For this reason I see the technique "
Dangerous Strike" as an absolute counter to AF or any technique which utilises spiritual energy, this would also explain the reason why "
Dangerous strike" has much heavier restrictions in comparison to other techniques which work on a Chakra Vs Chakra basis.
As for the second part of my question on 'Could this technique end a mode early by severing the spiritual energy of that technique/mode', I personally believe it could, a mode/state is a technique like no other, the only different is that the technique tends to be internalised and used on the casters person, this technique is already capable of striking the soul, there is no reason why this technique could not attach the technique on the casters body and severing the spiritual energy of the mode, which, staying true to the techniques description, would end the technique early and thus end the mode.
Another reason why the technique "Dangerous Strike" has such heavy drawbacks, especially in a RP system where it is now unusual to go longer than 5 combat turns, meaning that this technique could possibly be used twice at most in a fight, and even then it still only has a maximum use limit of 3 times per battle.
Conclusion - I believe that this technique is capable of ending modes early as well as combatting Atavistic flame or any spiritual based technique whether it has chakra or not