Crystal shards are items that give players the ability to work towards crystals. Get crystal shards from arenas, special missions, alliance events, and promotions. Once enough shards are collected, they can be redeemed for the respective crystal under the Shard Crystal tab. You will require 2,000 shards to build each kind of crystal.
There are five types of crystal shards players can collect to reconstruct four different shard crystals: Premium Bots Crystals, 2-Star Bot Crystals, 3-Star Bot Crystals, and 4-Star Bot Crystals.
You will NOT be able to mix and match the shards, as they must be used to create their designated crystal.