Gem Units

Gems, also referred to as Gem Units, are items in Street Fighter X Tekken that are used during gameplay to obtain various additional effects.

Description
Gems can be used to cover weaknesses, or support the user's play style, among other things. A maximum of 2 Gem Units (each with a capacity of 3 gems) can be set for each player. Gems can only be activated when certain conditions are met (e.g. activating Pandora Mode, or being hit with a certain number of attacks), at which point they will trigger automatically. Each gem has a corresponding color; when active, the user will glow a certain color, depending on the Gem.

The types of Gems are listed below.

Boost Gems
Boost Gems provide bonuses to stats such as health, speed, and strength. Depending on the stat it boosts, each Boost Gem has a sub-category.

Attack Gems
Attack Gems are red, and provide a percentage-based increase to the user's strength.

Defense Gems
Defense Gems are yellow, and either provide a percentage-based increase to the user's defense, or reduces the damage taken from attacks.

Speed Gems
Speed Gems are green, and provide a percentage-based increase to the user's movement speed.

Cross Gauge Gems
Cross Gauge Gems are blue, and either increase the rate at which the user's Cross Gauge is filled, or decrease the rate at which it is consumed.

Vitality Gems
Vitality Gems are orange, and restore the user's health, either gradually or instantly.

Assist Gems
Assist Gems are purple, and provide effects such as making special attacks easier to do, or automatically blocking attacks.