Just looking for a lil bit of info really… I recently purchased a Mumm-ra with a completly black dagger 
. Has anyone else got one or heard of this?
i’ve seen an Playful one from Argentina that was unpainted and black.
The all black variant is found on the UK Rainbow Toys (2nd logo).
It seems the 1989, 22-back Lion-o&Mumm-Ra both featured some unique characteristics 
the playful one doesnt have a black dagger. The glasslite one does
Awesome thanks for the info 
As Lordore said, it comes with the later release by Rainbow Toys:
http://www.thundercatslair.org/forums/attachment.php?attachmentid=554&stc=1&d=1289262695
Hey guys, i would like to add a supplement to this thread. The all black dagger not only appeared on the rainbow card but also on the euro card and mumm-ra/ravage euro card. Here are some pics:
My Mumm-Ra has a solid black dagger, he is the first Thundercats figure I got.