Add a rarity of 6 in generate.js as well for Blingtron's Blade bug
Add a rarity of 6 in generate.js as well for Blingtron's Blade bug

Fixes HearthSim/extract-scripts#7

HearthSim/hearthstonejson,Sembiance/hearthstonejson,HearthSim/hearthstonejson,Sembiance/hearthstonejson