When you summon a GF in battle, a blue bar will replace your ATB bar and will deplete. Once depleted, the GF will appear, but during the period while the bar is depleted all attacks directed at the summoning character will damage the GF, instead. If a GF’s HP are depleted during summoning, that GF will be KO’d and unable to be summoned until you rest or use a restorative item to bring it back, such as a G-Returner.

All pretty straight-forward stuff, but the speed at which a GF is summoned (the rate at which the blue summoning meter is depleted) is determined by a “Compatibility” stat, which essentially rates how well a GF and a specific character get along. GFs have different preferences, which influence their starting Compatibility, and you can also influence a GF’s Compatibility - negatively and positively - by summoning other GFs, casting certain spells, or using items. Turns out a fire GF might not be happy if you cast Blizzard, or summon that nasty ice GF, and while GFs are fickle and let their politics affect their disposition towards you, it’s generally not all that hard to butter them up by using certain items.

The difference in summoning speed can be quite drastic between a GF at low Compatibility and one at high Compatibility At the lowest Compatibility (0), a GF might take 17 seconds to arrive, while at the highest Compatibility (1,000) a GF can arrive in around 3 seconds. This summoning rate is fairly balanced across the Compatibility spectrum, as at 500 Compatibility a GF will take around 10 seconds to show up. That said, you probably won’t have many GFs on one character that you’ll summon often, ans since summoning a specific GF increases Compatibility with that GF, it shouldn’t be hard for you to boost the Compatibility of the GFs regularly used by each character, should you see the need to do so.

All in all, you’re probably not going to lose a fight if your Compatibility with a GF is low, or win one if it’s high, but in the few instances where using a GF is a noticeable boon, it can help to know how this works. Can’t hurt to have an edge, however slight, right?

Below you’ll find the starting Compatibilities of all the GFs and characters, information that’s more interesting than useful. In most cases, the difference between a character a GF dislikes and one a GF likes is a matter of maybe a second. Nothing to lose sleep over.

Guardian ForceSquallQuistisZellSelphieRinoaIrvine

As mentioned earlier, not all GFs are friends with each other. In fact, most GFs have another GF to which they’re opposed. Whenever you summon a GF, it’ll gain +20 Compatibility, while other GFs will lose -1.6 Compatibility The GF opposed to the one you summoned, however, will lose -10 Compatibility The only exception to this is Eden, which gains a paltry +2 Compatibility whenever it’s summoned, while other GFs gain +1 Compatibility

Guardian ForceOpposed Guardian Force

Most GFs have an item you can use to increase the user’s Compatibility with said GF. Typically this item increases the GF’s Compatibility by +3.2, bot lowers the character’s Compatibility with all other GFs by -1.6, although some items (Arctic Wind, Bomb Fragment, Poison Powder and Shear Feather) give half the normal boost/penalty, while the Fish Fin item gives +2 Compatibility with Leviathan, but -1 Compatibility to all other GFs. Less mixed, using a LuvLuvG item will increase a character’s compatibility with all GFs by +20. You can refine the Chubby Chocobo Card for 100x LuvLuvGs, which is enough to boost each character’s Compatibility with all GFs by +320.

Guardian ForceCompatibility Items
QuezacotlDynamo Stone
ShivaArctic Wind, North Wind
IfritBomb Fragment, Red Fang
SirenSilence Powder
BrothersDino Bone
DiablosSteel Orb
CarbuncleDragon Skin
LeviathanFish Fin
PandemonaShear Feather, Windmill
CerberusDragon Fin
AlexanderMoon Stone
DoomtrainPoison Powder, Venom Fang
BahamutShaman Stone
CactuarCactus Thorn
TonberryChef's Knife

Last and certainly least, GFs are sensitive to what spells you cast. Casting a spell in the “Favored Magic” column will earn you Compatibility, while casting spells in the “Opposed Magic” column will lose you Compatibility, but in this case… well, we’re talking about a +2 bonus or -2 penalty, at best/worst.

Guardian ForceFavored MagicOpposed Magic
QuezacotlAero, Thunder, Thundara, Thundaga, TornadoWater
ShivaBlizzard, Blizzara, BlizzagaFire, Fira, Firaga
IfritFire, Fira, FiragaBlizzard, Blizzara, Blizzaga
SirenBerserk, Blind, Break, Confuse, Pain, Silence, Sleep, Slow, StopDispel, Esuna
BrothersFlare, Meteor, Quake, UltimaAero, Float, Tornado
DiablosDemi, Flare, Meteor, UltimaDispel, Esuna, Protect, Reflect, Shell
CarbuncleAura, Cure, Cura, Curaga, Double, Esuna, Full-Life, Haste, Holy, Life, Protect, Reflect, Regen, Shell, TripleBerserk, Blind, Break, Death, Dispel, Pain, Silence, Sleep, Slow, Stop, Zombie
LeviathanFlare, Holy, Meteor, Ultima, WaterThunder, Thundara, Thundaga
PandemonaAero, Tornado, UltimaWater
CerberusAura, Dispel, Double, Esuna, Haste, Protect, Reflect, Shell, Triple, UltimaBerserk, Blind, Break, Confuse, Pain, Silence, Sleep, Slow, Stop
AlexanderCuraga, Full-Life, Holy, Life, Regen, UltimaBio
DoomtrainBerserk, Bio, Blind, Break, Confuse, Death, Silence, Sleep, Slow, Stop, Ultima, ZombieHoly
BahamutFlare, Holy, Meteor, Quake, Tornado, Ultima--
EdenFlare, Holy, Meteor, Quake, Tornado, UltimaAura, Blizzard, Blizzara, Cure, Cura, Curaga, Dispel, Double, Esuna, Fire, Fira, Full-Life, Haste, Life, Protect, Reflect, Regen, Shell, Slow, Thunder, Thundara, Triple

Guide Information

  • Publisher
    Square Enix
  • Platforms
    PC, Switch, PS1, PS4, XB1
  • Genre
  • Guide Release
    15 March 2019
  • Last Updated
    21 October 2020
    Version History
  • Guide Author

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Follow the exploits of Squall, a resident of Balamb Garden and SeeD aspirant whose first contract as a professional mercenary expands into a fight to save the world from an evil sorceress.

This guide will cover the main quest-line chronologically, giving advice on leveling (and how to avoid it), where to find the best spells, how to acquire all GFs and defeat all bosses. In addition the guide will cover all side quests and will also include in-depth mini-guides for Chocobo World and Triple Triad. By following this guide you can aspire to the following:

  • Complete walkthrough of the main questline.
  • All side quests and optional content.
  • How to defeat both of the game’s superbosses.
  • Information on how to acquire each GF and a discussion of their abilities, including where to assign them.
  • Information on Triple Triad, including the location of every card in the game and how to best use them.
  • Low-level run information.
  • Information on min-maxing stats.
  • A mini-guide for Chocobo World.
  • Information on all characters, including stats and how to acquire all their weapons and limits.
  • Triple Triad guide.

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