Seraph

Seraph (Sometimes referred to as ) is an in-game currency released with Captain Scarlett and Her Pirate's Booty.

How To Obtain
You can obtain Seraph Crystals from killing Hyperius the Invincible and Master Gee The Invincible after you kill Leviathan and complete the main DLC story. Shade gives the quests for both bosses. Drop amount changes every encounter, from 3 to 10.

Seraph Crystals
You can use the crystals to buy new Pink named Seraph weapons, shields or relics. The Seraph Vendor in the town of Oasis (near Catch A Ride console) will buy the seraph crystals. There you can spend your crystals to buy new pink named items. All weapons and shields cost 120 Seraph Crystals each, but relics only cost 50 crystals.