XP Boosters is a  special expirable item that provides a percentage-based increase in XP earned during gameplay. Once purchased, the booster is activated immediately and applies its effect across all game modes. The duration of the booster is additive, meaning if you purchase multiple boosters, their active times are combined.

While the XP Booster is active, you’ll see the following indicators:

• In the Store: A timer over the XP Booster packs stating, "XP Booster expires in:" 
• On the Play Button: A timer showing, "XP Booster expires in: "
• In Tournaments and Events: A timer on the play tournament button in events.
• In Player Profiles: A timer on the play duel button when viewing another player’s profile.
  Additionally, an XP icon will appear on your profile, and the XP bar in your profile and match summaries will reflect the boosted XP rate.