But nobody is forcing anyone to buy anything. This isn't errata, it's a rule update. Feel free to ignore it!On a total side note I have to say the thing that pisses me off most about this is that they have taken a PHB rule and re-written it.
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This doesn't bother me so much as I'm happy with most of the errata so far, but the presentation of said changes in a brand new book (PHB3) instead of actual errata to the original rule forcing us to "buy" rules updates is outrageous in the extreme.
[/soapbox]