Fury said:
This kind of "Game Mechanic" seems to be a BKSS. Or do you have an other example like this?
The thing is, in the case of a Game Mechanic, then they are all BKSS.
This is not the case of an effect saying one thing and a ruling saying another. For example,
Sacred Phoenix of Nephthys says nothing about it having to be destroyed
and sent to the Graveyard to return at the next Standby Phase. But Konami has clearly ruled that the effect will not trigger if she is removed from play. Thats an example of a BKSS in the traditional sense, effect text that states or insinuates one thing but with a ruling that states something different.
A Game Mechanic is the established set of rules already in play before that card effects will then attempt to modify. An Equip Card that looses it's target is destroyed by a Game Mechanic. A Monster Effect that is not active while the monster is face-down is a Game Mechanic. A monster being destroyed due to an attacking monsters higher ATK value is a Game Mechanic.
All Game Mechanics are BKSSs because they are the basic rules that dictate how the game is to be played, until a card effect comes along and says to do otherwise. There is no "looking for supporting evidence". Do you need to look for supporting evidence that you can Draw a card during the Draw Phase? Do you need supporting evidence that a monster can attack during the Battle Phase? No. Because the Game Mechanics dictate you can do this.
The
Snatch Steal example is not an extrapolation of how the effect works based off of another ruling. Its a basic part of how Equip Cards function.
If fact it's not erased it's been set permanent for -> being flipped face-down. (Not a real reason to me.)
You see control is calculated as a continous effect.
Firrt: who summoned it. Then come the changes like:
1. Summon P1
2.
Creature Swap P2 (Leaves a flag on the monster which is permanent.
3. Change of Heat P1 (Leaves a flag on the monster which is temporary.)
First off, the effect of a Normal Spell Card is never considered Continuous. (With the notable excetion of
Swords of Revealing Light. But thats a very special case that we won;t get into here.) At the very best,
Change of Hearts effect is considered a "lingering" effect. But your placing lingering effects on cards that have none in your examples. There is no flag placed on a monster with
Creature Swap. I can't imagine where you ascertain that from its effect.
So in Snach's case:
1. Summon
2. Snatch (continously applied when the control is recalculated)
After flipped face-down:
1. Summon
[2. Snatch?] a not anymore existing continous effect is now transformed into a permanent flag on the monster.
There is no effect in this example that would place a "flag" or lingering effect onto the face-down monster. There would have to be a Game Mechanic to place something like that on the monster and, like I said before, that is a non-existant Game Mechanic.
So dont say there is no logic in this argumentation. It is true that the rules state otherwise but it doesnt mean that people cant question its "why" beasuse this werent the first time somethig like this happens!
Finding another example for such a mechanic would be the best way to proove it, or showing an example that would "crash the game" if it wouldnt work so.
The problem is, I already have. No one is arguing that the cards don't work this way, because the rulings already state they do. Always have. What's being argued here is that the mechanics the way they already are, make less sense then the way you think they should work. But you can't make the Mechanics fit the way you want them to. They simply are what they are. When we start argueing over Game Mechanics then we start argueing about how the Game Engine was designed and thats a whoooooole different territory from a rules question.
Aside from that, this is not an example that needs proof that would "crash the game" as you put it. We are not trying to show how it wont work the other way. Whether it would work the other way or not is irrelevant. What we are trying to do is explain the existing Game Mechanic and the rulings they way they already are. But certain trains of thought seem to think the way were supposed to play it, is not the correct way to play it. I can't prove the existance of the sun, if you don't believe its shining on you.