It would be wonderful if the killing of the boss drops an engram. It would be much more rewarding, especially after an hard fight. I would add that the current system does not seem to drop very correct. It would be better to rebalance the percentage of drop depending on the difficulty of the enemies. Bosses would give a 100% chance of dropping rare or legendary engram. Sorry for my english. Thanks to listen. And will be awersome if sometimes bungie gives some reply in this forum.