GUARANTEED REWARDS
Using guaranteed rewards you can setup what kind of reward should be won at Xth crate opening.
For example when a player opens a crate for 10th time, the random reward is replaced with the guaranteed reward.
Example:
rewards: # Your regular rewards pool
example-reward: # Reward used as guaranteed
chance: 10
item:
material: DIAMOND
another-reward:
...
guaranteed-rewards:
example-reward: 10 # Id of the reward - amount of openings needed