The Cookie Book

Community Teams

Trial Grounds

Seven permanent trials, one per Cookie, each with its own arena. Browse the teams the community cleared them with, or filter to the rotating Trial of Glory challenge.

How it works

At the Trial Grounds, Cookies above certain ranks test their strengths for Life Jewels — the material for crafting and upgrading Crystal Jam. Clearing a stage means upgrading the Cookie and its Crystal Jam, which is why the mode reads as a Crystal Jam checkpoint rather than a team-comp puzzle.

Full breakdown — entries, Life Jewels and Crystal Jam effects

Trial Grounds

  • Here at the Trial Grounds, Cookies above certain ranks can test their strengths.
  • You can obtain Life Jewels that are required for crafting and upgrading Crystal Jam.
  • You can enter 7 times a week, and on midnight of Wednesday (GMT+9) your entrance attempts will be refreshed.
  • The higher the difficulty, the more Life Jewels you can obtain.
  • In order to clear a stage, you will need to upgrade the Cookie and their Crystal Jam.
  • When you battle in the Trial Grounds, certain Cookies will appear as "Required" in your team. You may change the Cookie to your team's Cookie.
  • In the Trial Grounds, you can use Rally Effects from certain Cookies. Rally Effects are automatically applied if you equip the Cookie with their Crystal Jam.
  • You can also enter by using Trial Grounds Tickets.
  • Any remaining Trial Ground attempts unused will be reset on midnight of Wednesday (GMT+9).

Crystal Jam upgrade effects

  • There are special effects activated in the Trial Grounds only.
  • These are buffs unlocked at certain upgrade stages of the Crystal Jam that apply to the Crystal Jam owner and the other Cookies from the team.
  • The effects that apply to the Heroes vary from Cookie to Cookie, and their strength increases significantly at +11 and +21.

About this page

  • Each trial is permanent content, so its teams stay posted whether or not it is currently being celebrated as an event.
  • When a trial is running as an in-game event, teams posted for it also appear on In-Game Events for as long as it runs.

Mode details are transcribed from the in-game overview. Post a team from the Team Builder.

Community teams

Posted by the community, best-voted first. Each card says which trial it is for.

Loading community teams…