Sazh – Synergist Crystarium

Character Sazh
Role Synergist
It takes him a while to get there, but Sazh is the most complete Synergist in the game. He and Hope have very nearly the same set of Abilities, though Sazh gets Vigilance instead of Veil. However, Sazh will first gain access to offensive buffs like Bravery, Faith, and En-spells, making him the offensive Synergist for the first nine chapters of the game.
Compare Sazh – Synergist Crystarium to other Crystariums

Related

Sazh

Eidolon Brynhildr (Chapter 8)
Base HP 220
Maximum HP 27,000
Base Strength 12
Maximum Strength 1,001
Base Magic 12
Maximum Magic 1,000
Starting Weapon Vega 42s
Primary Roles Commando, Ravager, Synergist
Accessory Crystal Synergist 4
Accessory Crystal Commando 8
Accessory Crystal Ravager 10
ATB Level Crystal Synergist 8
Chapter 1

Fang – Synergist Crystarium

Character Fang
Role Synergist
Fang is an interesting Synergist that can be quite effective despite having less Abilities than any other Character. She has access to Veil and Haste, but more importantly she gets the high-powered Abilities Bravera, Faithra, Protectra, and Shellra. These Abilities, exclusive to Fang and Vanille, are more powerful versions of the Abilities they are based on, but have a much shorter duration. You'll have to pay a lot more attention to your buffs if you use them, but the payoff can certainly be worth it.

Hope – Synergist Crystarium

Character Hope
Role Synergist
Hope, like Sazh, eventually gets almost every basic Synergist Ability (though he gains Veil over Sazh's Vigilance). Until Chapter 10, however, Hope is primarily a defensive Synergist, with Abilities like Protect, Shell, and Bar-spells. Which of the two is more useful depends largely on how hard the enemy in question hits.

Lightning – Synergist Crystarium

Character Lightning
Role Synergist
Lightning is a surprisingly effective Synergist, gaining all of the basic Abilities with the exception of Bar-spells. Her biggest failing is not learning Haste or Vigilance until Crystarium stage 10, however. Once all is said and done, she's quite effective simply because Bar-spells aren't of much use against the toughest enemies anyway. Too bad there's no Barstone in this game.

Sazh – Commando Crystarium

Character Sazh
Role Commando
Sazh is an interesting Commando because of his two pistols. Each shot does less damage than other Commandos, but he gets twice as many, and they seem to build chains slightly faster as well. His Random: Instant Chain Ability also seems more likely to go off. (As you can see, I have a lot of certainty about these things...) Sazh's biggest advantage is his Blitz attack, which hits many times over a very wide area. However, he lacks some of the basic attack enhancing Abilities, such as Ravage and Blindside, and is the only one of the four Characters with Commando as a primary Role that lacks the Launch ability. Against any enemy where Launch is vital, such as Behemoths, this basically means Sazh can't be your lone Commando.

Sazh – Medic Crystarium

Character Sazh
Role Medic
Sazh never gets access to Raise, but don't let that fool you into thinking he's a bad Medic. He doesn't get Curaja (that's reserved for Vanille and Hope), but he does get Curasa, making him an effective healer through endgame fights. That said, he won't get Curasa until Crystarium stage 9, and it's quite expensive.

Sazh – Ravager Crystarium

Character Sazh
Role Ravager
Sazh has no access to Blizzard or Water Abilities, but he does have all three tiers of Fire, Thunder, and Aero spells, along with the relevant -strike Abilities. He does oddly lack the Vigor auto Ability. His Cold Blood special attack will build the chain gauge of staggered opponents quite rapidly.

Sazh – Saboteur Crystarium

Character Sazh
Role Saboteur
Sazh is a very effective Saboteur, gaining access to every single-target debuff in the game. In fact, he's one of only two Characters that can inflict every possible status ailment (the other being Hope). Because he relies on single-target debuffs, he's not very effective against groups, but then, Saboteurs are generally most important against singular, powerful enemies anyway.

Sazh – Sentinel Crystarium

Character Sazh
Role Sentinel
Sazh is all about defense as a Sentinel. That may seem to go without saying, but he doesn't get any evasion Abilities, and while he does get Vendetta he does not get Entrench or the Counter auto Ability. He also doesn't get Mediguard, so if Sazh is your defender, you'll need to keep an eye on his HP. He does have the second-highest HP total in the game, though, and is the only non-primary Sentinel with Challenge.

Snow – Synergist Crystarium

Character Snow
Role Synergist
Snow is a decent Synergist as long as you don't care about elemental buffs—he doesn't get any Bar-spells or En-spells, nor does he get Veil. He does have the standard Protect/Shell and Bravery/Faith pairs, though, so he's a useful enough Synergist in a pinch.

Vanille – Synergist Crystarium

Character Vanille
Role Synergist
Along with Fang, Vanille is one of two Characters that has access to Bravera, Faithra, Protectra, and Shellra, high-powered Abilities that have a short duration to balance their extra effectiveness. Unlike Fang, Vanille has a decent number of standard Synergist Abilities as well, including Veil, Vigilance, and the Bar-spells. She is the only Character in the game that doesn't get Haste, however, so she's not very effective as your only Synergist.

Synergist

Bonus Type Extended Enhancements

Sazh

Sprite
Unique Character
No. ✩ 30 Game FFXIII
Unlocked at Level
Gear Gun
Ability Pyroburst
The afro of this former airship pilot has taken on a distinctly chocobo stink of late.

Synergist

Abbreviation SYN
Role Bonus Extended Enhancements
Base Bonus (Self) None
Role Level I Bonus (Self) Duration Bonus: +15%
Role Level II Bonus (Self) Duration Bonus: +30%
Base Bonus (Allies) Duration Bonus: +5%
Role Level II Bonus (Allies) Duration Bonus: +8%
Role Accessory Supporter's Amethyst (Grants Duration Bonus: +20% to self)

Sazh

Role Synergist
Grade 3–5
Strength 89
Magic 91
Maximum HP 1,336
Maximum Level 45
Descriptors Well-Grown, Flameproof, Fatherly
Feral Link Cold Blood (Deals damage and affects chain bonus)
Input Type Button tap
Command (PS3) Square & Circle (repeat)
Command (Xbox 360) X & B (repeat)
Downloadable Content Sazh: Heads or Tails?