Synergy ability

Synergy abilities are a mechanic in Final Fantasy VII Rebirth. In battle, when two party members consume a required amount of ATB charges (differing per ability), they can perform a team-up synergy ability. This ability is free to use, often deals great damage, and grants a powerful temporary effect.
Party members have unique synergy abilities together, meaning different combinations of party members can unlock different effects. This adds to the consideration when choosing a party to gain different effects based on playstyle. Synergy abilities differ from synergy skills, which are smaller moves in-battle.
Using synergy abilities with Cloud and another party member will improve Cloud's relationship with them.
Though synergy abilities are new to Final Fantasy VII Rebirth, the concept of synergy was first introduced in Final Fantasy VII Remake Intergrade during "Episode INTERmission". Synergy abilities in Rebirth are a greatly expanded mechanic.
==Mechanics==
When a party member uses an ATB charge in battle, those charges will fill synergy gauges. The gauge will be filled by how many ATB charges were used; if an ability cost two or more ATB charges, two gauges will be filled. When both party members have filled the requisite number of synergy gauges for that ability, the ability can be used for free.
The effects granted by synergy abilities include temporary unlimited MP, boosting limit levels, and extending a foes' stagger duration. Synergy abilities providing these moves are accompanied by an attack, which often deals strong damage, but is normally secondary to the effect granted by the ability. In some cases, synergy ability attacks can be used as a means to pressure enemies. Unlike during limit break animations, the participants of a synergy ability are not immune to damage during them.
Stagger-extender synergy abilities are best used when an enemy's stagger bar is nearly full: the synergy ability will stagger the target, and the combo's final hit will add the bonus time to the stagger and give back control of the characters.
One ubiquitous synergy ability shared by most party members is United Refocus, which temporarily extends party members' ATB gauge to three, meaning they will charge ATB much quicker. This ability does not include an attack. The effect is similar to the Refocus limit break from the in Remake.
Each party member has one synergy ability with an accompanying party member, meaning each (permanent) member has two synergy abilities with one another. Not every synergy ability is unlocked by default. Many need to be purchased as folios.
==Synergy abilities==
===Cloud Strife===
Synergy ability	Partner 	Description 	Effect 	Requirement
 	Sephiroth 	Damage your foe while making an ominous symbol with your slashes. 	Sephiroth - Temporary unlimited MP, Cloud - Limit level increase	Default
 	Barret Wallace 	Damage your foe while making an ominous symbol with your slashes. 	Limit level increase 	Party level 8
Relentless Rush	Tifa Lockhart 	Cloud launches Tifa toward an enemy to attack in tandem. 	Increase stagger time on foe 	Party level 2
 	Aerith Gainsborough	Cloud uses Aerith's magic to unleash a ranged attack. 	Limit level increase 	Party level 2
 	Red XIII 	Cloud and Red XIII hone their focus. 	Temporary 3 ATB charges 	Party level 5
 	Yuffie Kisaragi 	Cloud and Yuffie attack an enemy from all angles, striking swifter than lightning.	Limit level increase 	Party level 5
 	Cait Sith 	Cait Sith leaps onto Cloud's shoulder and delivers a calculated strike. 	Temporary unlimited MP 	Party level 8
===Barret Wallace===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Cloud Strife, Red XIII	Barret and his partner hone their focus. 	Temporary 3 ATB charges 	Party level 2
 	Tifa Lockhart 	Barret and Tifa team up to take down an enemy. 	Increase stagger time on foe	Party level 2
 	Aerith Gainsborough 	Barret imbues his shots with Aerith's magic and unleashes a ranged attack. 	Temporary unlimited MP 	Party level 5
 	Yuffie Kisaragi 	Barret and Yuffie lean into their shared prowess and unleash a ranged attack.	Limit level increase 	Party level 8
 	Cait Sith 	Barret uses Cait Sith for support while he unleashes a ranged attack. 	Increase stagger time on foe	Party level 8
===Tifa Lockhart===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Barret Wallace, Aerith Gainsborough, Yuffie Kisaragi	Tifa and her partner hone their focus. 	Temporary 3 ATB charges	Party level 2 (Aerith)Party level 5 (Barret)Party level 8 (Yuffie)
 	Cloud Strife 	Cloud and Tifa leap into the air and deliver a spinning attack. 	Temporary unlimited MP 	Party level 2
 	Red XIII 	Tifa and Red XIII unleash a fist-and-fang combo. 	Limit level increase 	Party level 5
 	Cait Sith 	Tifa swings Cait Sith's moogle around and launches it at an enemy.	Limit level increase 	Party level 8
===Aerith Gainsborough===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Cloud Strife, Yuffie Kisaragi	Aerith and her partner hone their focus. 	Temporary 3 ATB charges 	Party level 2 (Cloud)Party level 5 (Yuffie)
 	Barret Wallace 	Barret and Aerith strike a pose and unleash a ranged attack. 	Increase stagger time on foe	Party level 5
 	Tifa Lockhart 	Tifa makes use of Aerith's magic to deal damage across a wide area. 	Limit level increase 	Party level 2
 	Red XIII 	Aerith channels her magic through Red XIII's howl, unleashing a ranged attack across a wide area.	Limit level increase 	Party level 8
 	Cait Sith 	Aerith channels her magic through Red XIII's howl, unleashing a ranged attack across a wide area.	Temporary unlimited MP 	Party level 8
===Red XIII===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Cloud Strife 	Cloud and Red XIII channel their burning anger as they tear into an enemy. 	Limit level increase 	Party level 2
 	Barret Wallace 	Barret sends Red XIII flying toward an enemy at high velocity. 	Limit level increase 	Party level 2
 	Tifa Lockhart 	Tifa and Red XIII tap into their inner warrior to decimate foes across a wide area.	Increase stagger time on foe	Party level 8
 	Aerith Gainsborough	Aerith takes control of Red XIII, unleashing a ranged attack across a wide area. 	Increase stagger time on foe	Party level 5
 	Yuffie Kisaragi 	Red XIII and Yuffie sync up and attack in tandem. 	Limit level increase 	Party level 5
 	Cait Sith 	Red XIII and Cait Sith charge forward with an animalic abandon. 	Limit level increase 	Party level 8
===Yuffie Kisaragi===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Barret Wallace, Red XIII	Yuffie and her partner hone their focus. 	Temporary 3 ATB charges 	Party level 2 (Barret)Party level 4 (Red XIII)
 	Cloud Strife 	Cloud and Yuffie leap into the air and deliver a combo from above. 	Increase stagger time on foe	Party level 5
 	Tifa Lockhart 	Tifa and Yuffie leap into the air to bring the throwing star down on a foe.	Increase stagger time on foe	Party level 2
 	Aerith Gainsborough 	Aerith clones Yuffie, who launches a sprightly assault. 	Temporary unlimited MP 	Party level 8
 	Cait Sith 	Yuffie and Cait Sith attack in tandem with a secret ninja technique. 	Temporary unlimited MP 	Party level 8
===Cait Sith===
Synergy ability	Partners 	Description 	Effect 	Requirement
 	Tifa Lockhart, Yuffie Kisaragi	Cait Sith and his partner hone their focus. 	Temporary 3 ATB charges 	Party level 2 (Tifa)Party level 8 (Yuffie)
 	Cloud Strife 	Cloud hops aboard Cait Sith's moogle and lends it his sword to deliver fearsome slashes.	Limit level increase 	Party level 5
 	Barret Wallace 	Barret and Cait Sith spin around launching a ranged attack across a wide area. 	Limit level increase 	Party level 5
 	Aerith Gainsborough 	Aerith embiggens Cait Sith's moogle and launches it at an enemy. 	Increase stagger time on foe	Party level 5
 	Barret Wallace 	Red XIII and Cait Sith's moogle leap into the air and attack from above. 	Temporary unlimited MP 	Party level 8
 
Category:Abilities in Final Fantasy VII Rebirth