my boys, use the supernova link supernova://play/?swfurl=https://chat.kongregate.com/gamez/0013/0356/live/cwe-1023a-kong.swf?kongregate_game_version=1383671202
ok i got the badge with only my assassin but i had to use every gem i got and wait hours for enough coins from the buildings, and then i tried the fire challenge and it locked my only unit out of being added... permanently.
 "Monster Tiles TD"){kind=icon}
 "Dungeoneers"){kind=icon}
 "Creeper World: Evermore"){kind=icon}
 "Raid Heroes: Sword and Magic"){kind=icon}
 "Incremental Adventures"){kind=icon}
 "Incremental Cubes"){kind=icon}
 "Grow Defense"){kind=icon}
 "Elona Shooter"){kind=icon}
 "That Pokeyman Thing Your Grandkids Are Into"){kind=icon}
 "Idle Zoo"){kind=icon}
 "A knots story"){kind=icon}
 "Hat Wizard"){kind=icon}
 "Mighty Party"){kind=icon}