Yes, the Meta Rule is a very rare card. Although I have a number of prototype meta rule cards in testing, and have talked about a couple of others on the website, so far there have only been two: Rules Escalation, which appears in Fluxx 4.0, and Time Limit, which appears in Martian Fluxx. As for the ones I've talked about on the web, that discussion is here: http://www.wunderland.com/WhatsOld/2008/WN.08.28.08.html
? There's no Escalation in my copy of 4.0.
I have seen 4 different Meta-Rules around now, and I was wondering if there is anyway to get a copy of them? I have seen "Early Limit Compliance", "Quota Style Turn Order", "Rules Escalation", and "Cult Clash".
Here's up-to-date info on MetaRules from our FAQ. In fact, I came to this page to grab the URL to Andy's post about them.
I think the FAQ should probably be updated to include Goal Foundry, now that it's in Chemistry Fluxx and not just the Goal Foundry promo pack from 2015 :P