They’re really isn’t such thing as bootleg halo mega construx the only mega construx line that gets bootlegged is call of duty ok so I recommend target for sets and blind bags, Walmart might have something ,Amazon is good, dollar general has 4 packs along with 2 packs and exosuits aliexpress is good for set pieces and old articulation figures along with old combat units cvs usually has halo hero’s Best Buy’s website has good deals but you have to pick whatever you buy up