How long did it take you to get?
I've been running MP3 off-and-on since last week. I've managed to get the first and third keys pretty early on, but I've yet to see the second key or the Blacksmithing plans.
Soooo, I'll have to get back to you on that. =/Anyone heard of a glitch/mechanic that if you ENGAGE the keywarden WITHOUT 5 stack that he'll never drop a key? I've been avoiding that just in case... just wandering if that was the case though.
You need to have a full five stacks of Nephalem Valor in order for the keys to drop. Same applies for the demonic organ pieces, too.
It took me about 10 times on MP1 to get the plans. On MP1, I got the keys in 2 or 3 tries max. However, since the first time getting the 2nd key, I haven't gotten it since - I'm on try 21 and it still hasn't dropped...the first and third keys seem to drop no problem though. Getting increasingly frustrated with Act 2 warden.
Edit: also hate that the warden is in a place as huge as the Oasis, but that's a minor gripe