Hello, @MarkHD123!
In the Trial of Blood, you can complete different missions to earn exclusive rewards. Each mission you complete unlocks a unique reward that can be used during your matches.
If you've unlocked the Albino Wolf Warrior, Purpleblood Phantom, Wolf Battle Dance, or Blood Clan Waltz, you can equip these finishes and emotes by tapping on the "Configure Rewards" option. You can select the reward you want, and it will be available for use during your matches. These rewards can only be selected and used from the map during a match and cannot be collected somewhere else.