Bond Points

Bond Points allow you to increase your bond level with servants, with a maximum bond level of 5. They are earned by completing a mission and are only given to servants currently in your party, regardless of whether or not they participated in the Battle.

Increasing a servant's bond level unlocks their respective Interlude, provided they have also been Ascended at least once. Some interludes have 2 parts, the first part unlocks an Ascension Material and 1 Saint Quartz, and the second part increases the rank (damage) of their Noble Phantasm.

Each servant has a different rate at which they gain bond levels, with the only exception being Shielder (Mashu Kyrielite), whose bond level is tied to story progression.