Increase the enhancement prism drop rate and use it to masterwork armor to max, use ascendant shards to reroll the stats or even weapons. prisms and ascendant shards should drop on crucible and gambit rank up (prisms on fabled and above and shards on reset), maybe add drop chance for prisms on turning in vanguard token for rewards. Nobody's gonna left your game because of too much material bungie, feeling unrewarded will.