In the 4th release of Season 1, this pack includes 10 Boost Gems exclusively for Street Fighter characters. Equip these Gems and fulfill certain conditions for increased attack damage. Note: If you would like to see the effects of the Gems individually before purchase, you can view them in-game from the Gem List within the Store, or from Gem Unit in the Customize menu. This add-on is exclusive content for STREET FIGHTER X TEKKEN. The effects of the Gems may be subject to change.