Artoomis said:
A logical fallicy? I don't think so.
It is perfectly reasonable for a designer to come up with an item that, for whatever reason, gives amazing protection but is activated with a free action. Such an item should only be allowed to be activated/deactivated once per round - that would be part of it's game balance.
If you allow the ring discussed above to be activated and deactivated in one round such that you always gain the benfit, then, by logical extension, you should do the same for any similar item - even if wayyyy more powerful.
A "slippery slope," as used here, means that the same logic that is applied in a simple, easy, reasonable case can also be applied in a more unreasonable case.
D&D rules tend to go all wacky when a seemingly simple, reasonable ruling is then applied universally.
logical fallicy: a statement that does not work in logical argument. If I say "A B C D" a slippery slope kind of arguement would be to conclude I would next say "E F G H". Or, in other terms, that because one "bad" thing is allowed more will definately follow. Without evidence, this is a baseless statement.
I asked if you knew of any other rule clarifications that lead to widespread game imbalance. I haven't, but perhaps you have evidence of the "slippery slope" at work.
If you say this is setting a bad precident, which is not quite the same as a slippery slope, you must believe that there are other items which can be abused by application of this ruling. Can you think of any other currently published items? None come to mind for me.
If you believe that other designers will later create items that can be abused by this ruling, I would have to ask where you get the idea from. If they are aware of the notion of free actions as being allowed in multiple per turn, they would never create such a thing. Only if they ignored the ruling would there be a problem. If they ignore rulings, I wouldn't trust what they design in the first place, would make a case that they are bad designers.
Rules in general get wacky when applied without thought. Then again, disallowing rules without thought leads to strange results as well.