Carnal Instinct Key -

Acquiring the Key is only half the battle. Using it at the wrong time or location can waste its potential. Here is the optimal strategy:

Because gold is easy to farm but Keys are not, the exchange rate has stabilized: carnal instinct key

Before inserting the Key, you must "prime" the rift. Drag a recently killed enemy corpse (preferably an Elite mob) onto the rift center. This increases the quality of the loot dropped by the ritual by 200%. Acquiring the Key is only half the battle