Board Thread:Game Discussion/@comment-3531035-20131216183614/@comment-175.140.228.215-20131217091041

At one time the are "upgrade faster" episode but don't think it work anymore. Also selling during Raid Boss do give more credits.

For the question on the best time to pull. I experience it to pull on the last day give more chance on episode card. While pull on the beginning give a slight change for your upgrade. If there are no upgrade I might left few reserve. Like the Campaign episode medal and credit are hard to come by.

PredatorWarrior