Caelenvasius. You are a typical intellectual bully. There are people on these forums, like GrandSpleen, who have been doing these discussions in depth for months, if not years. They have demonstrated far more knowledge, consistently, than anything I have seen from you. I saw you first comment here like a day ago. All of a sudden you are flooding the forums with long posts that come across as arrogant, condescending, and self important, but not smart. People like you win debates by focusing on minute and largely irrelevant details and by drawing distinctions without and significant difference, then mock and belittle others for not noticing the same small aspect. Yet, often, these small details are merely arbitrary descriptive strategies that mean very little. I shall answer your questions in the most complete and destructive way I can because I want you to either develop some humility or stop posting on these forums.
Here we go. According to the philosopher William James the meaning of a word or phrase is significant only in its practical use. If two words end up with the same practical use then the two words really mean the same thing. It is interesting to note, for instance, that when the words "and" and "but" are transcribed using symbols from symbolic logic the words are represented by the same symbol because in logical mechanisms the two words offer no difference in their practical use.
Let's apply that to our discussion here. I stated that the phrase "immune to player card effects" can be described as a triggered ability, using the same logic you employed to call toughness a triggered ability. I never said that it IS described that way, but merely that it CAN BE (it is like you didn't bother to read what I said). You did not refute this point, nor, honestly, appear to understand it. My point was that the designation of toughness as a passive ability or not a passive ability was entire arbitrary. It was not a logically necessary conclusion based on whether or not the ability included a trigger.
You said, "I'm not sure how you can reconcile these two quotes," referring to a claim you made and a claim I made. I am not sure why reconciling those two quotes is my job. It seemed abundantly clear according to standard communication techniques that the expressed purpose of my claim was to contradict your claim. By the very nature of my attempt to contradict you it would seem that I would want to put forth a statement that could not be reconciled with your statement as it would, you know, contradict it. But nevertheless let me attempt to do something similar to what I think you meant to say.
I think you meant to say that my thesis was already refuted by your comment, and since I had failed to address what you had said the burden of proof was still on me. Okay, so what is your point? It seems that you are saying that "immune to player card effects" is passive because it is always there. It doesn't just pop up when triggered. For the life of me, I have no clue how you think that this is any kind of valid argument. In what sense does toughness "go away" when it is not being triggered? How exactly is immunity more present than toughness? Honestly, it is just bizarre.
You attempt to refute my point by saying that immunity does not "cancel" player card effects; it "ignores" them. Wow, zing. Because there is a noticeable difference between cancel and ignore?? Even if it does ignore the effects, isn't the act of ignoring triggered?
You said, "it certainly does not 'trigger' when a player card is played." This is an error on several levels. First, of course immunity triggers when a player card is played. How is it not? If it wasn't triggered then the player card would work. Second, I never said it triggered of a player card anyway; I specifically said it triggered off player card effects, canceling them. All you did was assert that I was wrong, but asserting something doesn't make it true, even when done condescendingly. This point is made very clear by your own reasoning in the following section.
You go on to explain how toughness works in contrast to defense (as though I don't already know). You make it very clear that all damage is reduced by toughness. Oh, so you mean it is on all the time? So, you mean it certainly doesn't "trigger" when a player card is played? Yeah, I know. That was my point.
If you wish to debate further I would love to teach you more about basic rules of logic and argumentation, even if it is with a person who claims to know better.