If you’re getting rid of shards perhaps keep the cost of focusing etc the same, as shard cost for many dedicated players is often a nonissue and this would also be the best case for new players. Every time you focus you’re still pulling the slot machine for a roll that is not in your favour if looking for something specific, the proposed increase in engram cost exponentially decreases your odds comparison to playtime. Without the need for having to chase a lot of new weapons for many players, as most weapons are side-grades or incrementally better at best, trying to increase playtime-rewards begs the question… is the juice worth the squeeze?