Ok, so, let’s get some recipes together here:
Vanilla Legendaries:
3 Legendary Guns = 1 random legendary gun (can you moonshine this?
2 Legendary Guns + 1 purple gun = 1 legendary or purple gun (weapon type set by purple weapon in input recipe), moonstone grind guarantees Legendary
3 Purple guns - chance of 1 Legendary gun, no Moonstone option
3 Purple Shields - chance of 1 legendary shield, no moonstone option
3 Legendary Shields - 1 legendary shield, no moonstone option
3 purple grenades - chance at 1 legendary grenade, no moonstone option
3 legendary grenades - 1 legendary grenade, no moonstone option
3 purple oz kits - chance at 1 legendary oz kit, no moonstone option
3 legendary oz kits - 1 legendary oz kit, no moonstone option
3 purple class mods - chance at 1 legendary class mod (moonstone seems to guarantee a Celestial class mod of the type of the character grinding it)
3 legendary class mods - 1 legendary class mod, no moonstone options
Holodome DLC Legendaries
No clue!
Never seen a single one of the Holodome legendaries - how do you go about grinding these up?
Claptastic Voyage DLC Legendaries
Same as Vanilla Legendaries except you must use at least 1 Clappy DLC Legendary and you will never have a Luneshine option?
Can you mix and match Clappy and Holodome DLCs?