Cost

Cost relates to the total cost of Servants combined with their currently equipped Craft Essences that can be in a single Party at once. Cost increases as your Master Level increases, with a cap of 98 total cost at Master Level 100.

The more stars a card has, the higher its cost will be, with servants generally costing slightly more than Craft Essences. The only exception to this rule is Shielder (Mashu Kyrielite), as she has a cost of 0. Using a support servant in your party also has no cost.