When the Mystics takes damage.

So Simultaneously and not after? In this case there would be no need for the Player's Guide entry.

there was never a need for it, it was there to make it clear that you would still take the damage even if it KO'ed the figure.

Exactly. Strictly speaking, there are many things in the PG that techinically aren't necessary... but because people like to argue anyway (it is the internet, after all), entries were created to prevent further escalation of said arguments.

Interesting discussion here. I'm commenting to mostly mark it to see where it goes.

FWIW, I believe that the mystics check would happen WHEN In-Betweener takes damage. Since the "Source of Magic" SP is not showing at the point when In-Betweener TAKES damage, the Mystics damage is 1, not 2.

Rulebook, page 9
When an attack hits, the damage dealt to the target is equal to the attacker’s Damage Value, modified by any game effects. The target takes that much damage, modified by any game effects. The target’s combat dial is turned clockwise a number of times equal to the damage taken.

Based on a strict reading of the above, damage is taken, then applied (this is the "combat dial is turned clockwise" part)

Mystics reacts when you take the damage but before it is applied (this is how it works even if the character is KOd)

Of course, an orange may contradict this, but I am going strictly on wording

Dealing Damage:Whenever a character takes damage, that character's player turns or clicks the character's combat dial in the clockwise direction once for each 1 damage taken.

Damage Taken:The number of clockwise clicks applied to a target after damage is dealt.

Sounds to me that damage is dealt first,then the character takes damage clicking the dial at least 1 click for damage taken. I can turn the dial 1/2 way but I still have not taken damage since I was not dealt 1/2 damage but dealt 1 damage.And the Mystics is checked when the character takes damage which is after damage dealt.So with this I think he dishes out 2 clicks of damage.

Is there anything here that might be useful for understanding the Mystics game effect?

I understand that knockback has its own exceptions given by the player's guide, but does that give precedence for a Mystics ruling?

The thing I'm waiting for an answer on is simply a procedure of who takes the damage first. I understand that it activates when he takes damage, but if the Mystics damage would be taken after, then his power is showing.

Can the active player choose to take his Mystic Damage first before applying damage to In-betweener?

On the same not if In-Betweener is on his last click can I choose to have him apply his damage first, in which case he would lose the power and I would only take 1 unavoidable damage?

No. Mystics is triggered (and the damage doled out) as the Mystic takes damage. The two events (Mystics taking damage and attacker taking Mystics damage) occur at the same time. You, as the active player, could techically say I am going to click the Mystics character first, but that won't change the actual triggering event: when Mystics was activated, the special power was not showing.

Again, you could do it in any order you wished technically, but the trigger condition was already met. You use the dial as it is currently showing at the time of the trigger.

I'm pretty sure this is all that needs to be known.

1 dmg.

If anyone is arguing that the attacker would be dealt 2 damage, do they also play that the attacker takes no damage if a mystic is KOed by an attack?

The mystics damage is assigned when the mystic character takes damage, not after they take damage.

Did you deal damage? Yes.
Is the power showing? No.

Attacker takes 1 mystic damage, In-Betweener takes however much damage.

I'm not arguing anything now that an Official Answer has been given. But there is a Players guide entry telling you the character still takes damage if they KO a Mystic. That is one of the reasons I thought it was two. As that PG entry would be completely unnecessary otherwise.

Also I would point you to the timing of Bag-Man's Kick Me. Same wording, different timing completely.

As I mentioned before, there are many PG entries that are (strictly speaking) unnecessary. But questions are asked, arguments are made, and it is just easier to have a clarification in the PG than to rehash everything over and over again everytime someone else has a similar question.

No, it isn't the same wording. Kick-Me does use the word "takes", sure, but to say the wording is the same is to completely ignore the rest of the sentence.

Kick Me!: Whenever Bombastic Bag-Man takes damage from
an attack, deal the attacker penetrating damage equal to the
damage taken by Bombastic Bag-Man. Bombastic Bag-Man can’t
be healed except by the Fantastic Four team ability.

We've already gone over this, though, so I'm not really sure why it has been brought up again...

It was brought up again because Surfer13 asked a question to those of us that thought it would be 2 damage. I was answering him. I was not arguing with you. I wasn't even asking for any clarification. I accept and respect your ruling and will of course be using it whenever the question comes up.

Sometimes people post things like "Simple...obviously!" When it really isn't that simple. As such I was responding to him and explaining to him that his reasoning (still taking Mystics when KOing a Mystic) was a big part of my own reasoning.