Mentors will sell their armor component. Cayde-6 sells Sapphire Wire Ikora Rey sells Hardonic Essence Commander Zavala sells Plasteel Plating The Shipwright sells shaders for your ships, and even some stuff like logos, or emblems, even let you add a little vault on that ship maybe. The Gunsmith'll let you upgrade old Legendary weapons, and sells weapon shaders The Speaker lets you upgrade old Legendary armor, transfers Ascendent Shards into Ascendent Energies, vice versa, allows you to transfer Light Level throughout different armors for a few Motes of Light, and activates audio recordings for Grimoire for you The Special Orders lady can let you redeem Destiny codes on the spot and sells special offers. Every Faction has their own exotic bounties that unlock at rank 25+, but are still random. Faction leaders can re-roll your weapon stats like Saladin in Iron Banner. Around the Tower, random NPC's task players with quest-like objectives. (These are not bounties in any way) Through a Settings Option, you can set an option to have NPC's fill empty spaces in your Fireteam during Story Missions. Please leave some comments if you have any. [b]Idea Spotlight[/b] [i]gcw00068[/i] 'Light Level transferring through armors' [i]MrStickiy[/i] 'the Speaker reading Grimoire off to the player.' [i]The Hitman[/i] 'Faction leaders re-rolling gear' [i]SaintVictorious[/i] 'Factions have their own exotic bounties' [i]Swank[/i] 'NPC's join you during Story Missions' [i]TheSuperEmeralds[/i] 'Transferring Ascendent Shards into Energies, vice versa' [i]Almost everyone[/i] 'NPC's giving players quests' [u]Side notes[/u] There are a few who don't realize that NPC's in your Fireteam have to be activated through the Settings.