In the 4th release of Season 2, this pack includes 10 Boost Gems exclusively for Tekken characters. Equip these Harmonize Gems and fulfill certain conditions for vitality recovery effects! 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.