Spark essence is used to reconstruct sparks. Sparks allow you to rank up your bots in order to make them more powerful.
Where Can I Get Spark Essence?
These essences can be obtained from the Raid Store, daily missions, event rewards, and selling sparks.
How Much Essence Will I Need to Construct A Spark?
This depends on the tier of the spark, but you can find the amount of essence needed in the inventory under each type of spark.
How About Selling Sparks?
Selling a spark will grant you essence in addition to Gold.
For example, this player owns one Tier 1 Basic Spark. Selling the spark will grant the player Gold as well as spark essence, which can be used for a Tier 2 Basic Spark.
Spark essence can be obtained for basic and class sparks.