yeah i feel ya, i only had two legendarys from purple engrams, a pulse rifle (its pretty good though) and a hunter chest peace (I'M A -blam!-ING WARLOCK) but i literally taken +20 purple engrams and only goten 2 count em 2 legendarys from that, the rest turned into mats and strange coins/motes! i goten more legendarys from blue engrams (got a rocket, a warlock bond [witch was from FWC so i just threw it away) some titan gloves (once again I'm a warlock), i think bungie set it super low so we have to farm for out legendarys