ok... this is the second time people have alikened this to mime... please for the love of god, dont see "copy" and go OMFGITSAMIME -_- it is NOT a mime, it is NOTHING like a mime. it is a job completely centered arround party synergy. mime is a job that is completely centered arround doing what someone else has already done. this is a job that is focused on improving the synergy of a party. heres an example:
you have a 6 man party, doing a mission level fight
Soul Link: Alpha
Recast 5 Minutes
Duration 5 Minutes, extended by job trait levels
Links the players Soul with target Party member, granting player access to all job abilities of the Linked party member.
Soul Link: Beta
Recast 10 Minutes
Duration 1 Hour, extended by job trait levels
Links the players soul with Target Gaining access to the targets Equipment selection, for both gear and weaponry, increases all combat skills to targets level.
Soul Link: Gamma
Recast 5 minutes
Duration 5 Minutes, Extended by Job trait levels.
Links the players Soul with target Party Member, Granting Player access to all Known magic of target player. Raises all skill levels to match targets skill.
Blue magic: only copies currently set spells, does not grant stat bonuses, or trait sets.
Soul Link: Delta
Recast 10 Minutes
Duration 1 Hour, Extended by Job trait Levels
Links the player soul with target Party Member, Granting Player access to all Primary Job traits of target player. Does not copy support job abilities.
your synergist in this situation would fill the role of either:
A). secondary support healer
B). Melee Damage Dealer
C). Magical Damage Dealer
D). Secondary tank
lets play out a scenerio
Synergist decides; this party is lacking melee damage output, so he utilizes his abilities and Soul link Alpha's the samurai, Soul link Beta's the warrior, and Soul link Delta's the Paladin, granting your synergist the Job abilities of a samurai, the Armor Selection of a warrior, and the job traits of a paladin.
Fight goes on for a bit, and the paladin gets hit by doom, the white mage is highly unsuccessful in removing it, so the Synergist casts soul siphon: doom, and saves the paladins life. the synergist now uses a hallowed water, OR removes his Soul link alpha and uses Soul link Gamma on the white mage to cursna spam himself.
Ok paladin gets one shotted and reraised: synergist has a multitude options at this point, he can do either
A) Soul siphon Death, and have two weakened players for one minute ( the paladin weakened for 4 minutes)
B) soul link gamma the white mage to raise the paladin, and then Soul siphon: weakness, to put the paladin back into action
C) paladin Reraises but is just totally a failure Paladin, synergist cancles Soul links and Soul link Gamma on the whm, Beta on the paladin, and Alpha on the warrior, and BOOM throws on full paladin gear and plays like a Faux paladin, he wont have the paladin level job traits but he will have his armor selection, and the job ability selection of a level 99 warrior, and the spell selection of a 99 whitemage which will compensate for the lack of paladin JA and JT.
as you can see, synergist is meant to beable to swing from one role to the next on the fly, and every time he soul links someone, the Linked person gets a potent buff, and each soul link is a viable buff that provides incentive for each and every job to be linked, not making one link horribly better then the other.