Shards are tiny squares that make it easier to keep track of game mechanics. These miniature cards can be used to indicate the strength of power cards and shield cards, note how many turns a specific card has been on the field, keep track of the number of turns you've skipped in a row, and act as stand-ins for tokens (power cards that do not physically exist).
 
Each Shards Package contains 140 shards printed with numbers ranging from 1-10 (as well as a selection of larger numbers and other useful indicators).