You just gotta be patient and they will come when you least expect it. This is the first time in my four years of keeping bettas I've been able to even find Plakats, let alone Dragons.
I'll be going back this weekend to get 1 pk dragon and divide the 5g. I can't resist the pull LOL This is (almost) worse than a Meth addiction ... oh well I might as well stock up while there around
Heres my other one. He was also sold as Dragon PK but im thinking he's a Metallic.