Fusion of Ki

is a space-time ki enchantment technique created by Chronoa and cast upon and used by Goku and Xeno Goku.
Both of their forms receive incredible boosts in strength, with Goku using Super Saiyan Blue, while Xeno Goku uses Super Saiyan 4 (in the anime and OVA) or Super Full Power Saiyan 4 Limit Breaker (in the manga).
==Overview==
This transformation unifies the energy of both Gokus, forming a flaming white and golden ki around them both while blue and red lightning crackle around Goku and Xeno Goku, respectively. A large halo similar to Chronoa's Time Power Unleashed's own emerges behind them, comprised of two colors - one half being Goku's blue and the other half being Xeno Goku's red.
Chronoa describes the technique as linking two individuals' energy, bringing their combined ki to the max and allowing them to constantly fight at full power. To further increase the technique's effectiveness, individuals must concentrate their attacks towards the same location for greater damage output. However, Fusion of Ki cannot be maintained for long.
==Usage and Power==
In the anime, Goku and Xeno Goku take on this combined energy state when Chronoa helps them form a truly direct link between their ki after Super Saiyan God SS Evolved Gogeta and Super Full Power Saiyan 4 Limit Breaker Xeno Gogeta are defused by Dark King Fu. This fused ki state cannot be maintained for long, but the two deliver a powerful Combined Kamehameha that shatters through Fu's protective barriers and makes contact, though Fu remains relatively undamaged while the two Gokus drop out of the Fusion of Ki state.
In the manga, Chronoa and Super Saiyan God Xeno Trunks arrive to aid Goku and Xeno Goku in the fight against Fu. After calling Fu out on his horrendous misuse of both Time Birds and the power of the Dark King, Chronoa states she won't forgive him before casting her 
Fusion of Ki spell on both Gokus, while Xeno Trunks buys them time. Chronoa warns the two that the technique is risky, due to the constant maximizing of ki, and if either Goku or Xeno Goku cannot match the other's speed, they'll quickly disrupt the spell's balance and exhaust their power.
After Fu releases Mechikabura, whose hands easily tanks a Burning Breaker Super Slash from Xeno Trunks, Chronoa completes the Fusion of Ki technique, allowing Goku and Xeno Goku to return to battle with their newfound power. Mechikabura almost completely manifests out of Fu in an effort to buy himself some time, using his hands to entrap both Gokus. However, the Gokus launch their Kamehamehas in unison, blasting away both hands. Goku and Xeno Goku then further power up to their maximum and, with a Combined Kamehameha, eviscerate Mechikabura's armor and blast Fu away completely, dealing serious damage to the scientist, who reveals he was only buying time to revive the Universe Tree.
==Video Game Appearances==
*Dragon Ball Heroes
*Dragon Ball Z: Dokkan Battle
In Dragon Ball Heroes, the form first appears in Big Bang Mission 11 for both Goku and Xeno Goku. Since Goku is the card's base character, his Blue form is called . 
In Dokkan Battle, Darkness-Purging Universe Tree Power Super Saiyan God SS Goku (Universe Tree Power) uses the technique as part of his Active Skill.
==Gallery==
==References==
Category:Techniques
Category:Supportive techniques
Category:Transformations
Category:Saiyans
es:Fusión de Ki