Magic Accuracy

Category:Stats
== Overview ==
Magic Accuracy denotes the likelihood of a spell casting on a target not being Resisted. Similar to a physical attack, status effect magic attacks can miss and result in a full resist of the spell. Elemental magic attacks are different as the target would still take damage but the damage dealt would be, at the highest level of resistance, substantially smaller than normal. See the Resistance page for more information.
Raising Magic Accuracy directly increases the chance that a spell will land on the target without resistance. However, the potency of the spell (e.g. the potency of paralyze or duration of another status effect spell) is not affected by simply raising Magic Accuracy. Attributes such as INT and MND raise the potency of their corresponding spells. It has been proven that one point of skill in the appropriate magic skill (e.g. Elemental Magic, Enfeebling Magic, ...) corresponds to one point of Magic Accuracy, and not .9.
The Tests done by Lodeguy Original Japanese page English version show that 1 magic accuracy = 0.5% magic hit rate below 50% hit rate, 1.0% increase after 50% magic hit rate.
It also shows that INT = 1 magic accuracy until total INT is > (targetINT + 10).
Each additional point of INT after that gives 0.5 magic accuracy. It is unknown if any amount of stats after that limit can give 0.5 magic accuracy.
It is assumed the same goes for MND vs TargetMND and CHR vs TargetCHR.
==Total Magic accuracy==
* When calculating the landing rate of a spell (without considering partial resists, see Magic Hit Rate), the game first calculates your total amount of magic accuracy :
M=Magic skill + M1 + M2
:Where M2 is your total magic accuracy from gear/merits and M1 is the contribution of your stats to magic accuracy :
δstat=(caster's stat)-(target's stat)	M1
δstat ≤ 10 	M1 = δstat
δstat≥10 	M1=10+(δstat-10)/2
* For elemental magic, and BLM enfeebling spells (sleep, poison, etc) M1 is determined by checking the INT of the caster and the target. For whm nukes and enfeebling spells, MND is considered.
: It is unknown if gravity is checked against the target's AGI or INT.
* This number M is then checked against the target's magic evasion to determine your Magic Hit Rate
: Complete tests and data for the total magic accuracy formula and Magic Hit Rate can be found here [Openoffice doc](http://rapidshare.com/files/320891736/magic_ac_bis_.ods.html) with the graphical summary here http://wiki.ffxiclopedia.org/wiki/File:Stone-QQP.jpg
== Elemental staves ==
* NQ, HQ and some magian Elemental Staves grant magic affinity. Each point of affinity grants magic accuracy according to the formula (10 + NUMBER*10).
** NQ staves have a hidden effect of (element) Magic Affinity : Magic Accuracy +1, and thus give 20 magic accuracy.
** HQ staves have a hidden effect of (element) Magic Affinity : Magic Accuracy +2, and thus give 30 magic accuracy.
** Magian trial staves have augments of (element) Magic Affinity : Magic Accuracy +1/+2/+3/+4, and thus give +20/+30/+40/+50 magic accuracy.
For example: HQ Elemental Staves with their +30 magic accuracy and depending on your total magic accuracy M, can give any value between 15% and 30% landing rate, not counting the other sources of magic accuracy given by the various stats on them(INT+5 for Aquillo's staff for exemple).
: example 1 : if my landing rate on thunder IV is 47% without Jupiter's staff it will be 74% when I equip it (+27%)
: example 2 : if my landing rate on thunder IV is 41% without Jupiter's staff it will be 62% when I equip it (+21%)
* When Nuking with ice spells, while being under Aquilo's Staff's INT+10, gives 45 magic accuracy (30 + 10 elemental skill+ 5 INT).
Beware that magic affinity LOWERS magic accuracy (and magic damage bonus) by the same amount for the element weak to the staff.
==Equipment that modifies Magic Accuracy==
Name 	Lvl	Slot 	Effects	Jobs
Chocobo Shirt 	1 	Body 	 	All
Astaroth Cane 	27 	Weapon 	 	WAR/MNK/WHM/BLM/RDM/BST/BRD/SMN/SCH
Sturm's Report 	60 	Ammo 	 	All
Macha's Crown 	35 	Head 	 	BLM/RDM/BLU
Sennight Bangles 	36 	Hands 	 	All
Balrahn's Ring 	50 	Ring 	 	All
Storm Zucchetto 	50 	Head 	 	All
Gramary Cape 	50 	Back 	 	WHM/BLM/RDM/BRD/RNG/NIN/SMN/BLU/PUP/SCH
Bitter Corset 	60 	Waist 	 	WHM/BLM/RDM/BRD/SMN
Diana Corona 	64 	Head 	 	MNK/WHM/RDM/THF/PLD/BST/BRD/DRG/SMN/BLU/COR/PUP/DNC
Diabolos's Earring 	65 	Ear 	 	All
Lieutenant's Gorget 	65 	Neck 	 	All
Cobra Unit Robe Set 	68 	Set 	 	WHM/BLM/RDM/BRD/SMN/BLU/PUP/SCH
Clearpath 	69 	Club 	 	WHM/PLD/SCH
Harpy Shield 	69 	Shield 	 	WHM/BLM/RDM/SMN/BLU/SCH
Abyss Cape 	70 	Back 	 	DRK
Argute Belt 	70 	Waist 	 	SCH
Carline Ribbon 	70 	Head 	 	WHM/BLM/RDM/BRD/SMN/BLU
Gloom Claymore 	70 	Great Sword	 	DRK
Insect Ring 	70 	Ring 	 	All
Koga Sarashi 	70 	Waist 	 	NIN
Mercenary's Trousers	70 	Legs 	 	WHM/BLM/RDM/BRD/SMN/BLU/PUP
Mirage Mantle 	70 	Back 	 	BLU
Fire Grip 	70 	Grip 	 	All
Ice Grip 	70 	Grip 	 	All
Wind Grip 	70 	Grip 	 	All
Earth Grip 	70 	Grip 	 	All
Thunder Grip 	70 	Grip 	 	All
Water Grip 	70 	Grip 	 	All
Light Grip 	70 	Grip 	 	All
Dark Grip 	70 	Grip 	 	All
Corselet 	71 	Body 	 	PLD/DRK
Corselet +1 	71 	Body 	 	PLD/DRK
Pantin Churidars 	71 	Legs 	 	PUP
Ree's Headgear 	71 	Head 	 	All
Witch Sash 	71 	Waist 	 	WHM/BLM/RDM
Antares 	72 	Club 	 	WHM/BLM/RDM/BRD/SMN/SCH
Chasuble 	72 	Body 	 	RDM
Chasuble +1 	72 	Body 	 	RDM
Mirage Shalwar 	72 	Legs 	 	BLU
Oracle's Robe 	72 	Body 	 	WHM/BLM/BRD/SMN
Lycopodium Earring 	72 	Ear 	 	All
Wise Braconi 	72 	Legs 	 	RDM
Wise Braconi +1 	72 	Legs 	 	RDM
Wise Cap 	72 	Head 	 	RDM
Wise Cap +1 	72 	Head 	 	RDM
Alkalurops 	73 	Staff 	 	WHM/BLM/RDM/BRD/SMN/SCH
Hirenjaku 	73 	Katana 	 	NIN
Hirenjaku +1 	73 	Katana 	 	NIN
Tojaku 	73 	Katana 	 	NIN
Orichalcum Scythe 	73 	Scythe 	 	DRK
Triton's Scythe 	73 	Scythe 	 	DRK
Blizzard Scythe 	73 	Scythe 	 	DRK
Fragarach 	74 	Sword 	 	WAR/PLD/DRK/BLU
Ixion Cloak 	74 	Body 	 	WHM/BLM/RDM/BRD/SMN/BLU/PUP/SCH
Naglering 	74 	Great Sword	 	DRK
Aureole 	75 	Ranged 	 	All
Carnwenhan 	75 	Dagger 	 	BRD
Denali Gamashes 	75 	Feet 	 	MNK/THF/RNG/NIN/BLU/COR/DNC
Denali Kecks 	75 	Legs 	 	MNK/THF/RNG/NIN/BLU/COR/DNC
Epsilon Ring 	75 	Ring 	 	All
Goliard Clogs 	75 	Feet 	 	WHM/BLM/RDM/BRD/SMN/PUP/SCH
Goliard Cuffs 	75 	Hands 	 	WHM/BLM/RDM/BRD/SMN/PUP/SCH
Homam Zucchetto 	75 	Head 	 	THF/PLD/DRK/DRG/BLU
Laevateinn 	75 	Staff 	 	BLM
Liberator 	75 	Scythe 	 	DRK
Mirage Shalwar +1 	75 	Legs 	 	BLU
Morgana's Cotehardie	75 	Body 	 	WHM/BLM/RDM/BRD/SMN/BLU/PUP/SCH
Morrigan's Coronal 	75 	Head 	 	BLM/RDM/BLU
Morrigan's Cuffs 	75 	Hands 	 	BLM/RDM/BLU
Murgleis 	75 	Sword 	 	RDM
Nagi 	75 	Katana 	 	NIN
Nashira Turban 	75 	Head 	 	WHM/BLM/RDM/SMN/BLU
Nashira Manteel 	75 	Body 	 	WHM/BLM/RDM/SMN/BLU
Nashira Gages 	75 	Hands 	 	WHM/BLM/RDM/SMN/BLU
Nashira Seraweels 	75 	Legs 	 	WHM/BLM/RDM/SMN/BLU
Nashira Crackows 	75 	Feet 	 	WHM/BLM/RDM/SMN/BLU
Omega Ring 	75 	Ring 	 	All
Pantin Churidars +1 	75 	Legs 	 	PUP
Salire Belt 	75 	Waist 	 	All
Shadow Hat 	75 	Head 	 	WHM/BLM/RDM/BRD/SMN
Shadow Coat 	75 	Body 	 	WHM/BLM/RDM/BRD/SMN
Shadow Cuffs 	75 	Hands 	 	WHM/BLM/RDM/BRD/SMN
Shadow Trews 	75 	Legs 	 	WHM/BLM/RDM/BRD/SMN
Shadow Clogs 	75 	Feet 	 	WHM/BLM/RDM/BRD/SMN
Tizona 	75 	Sword 	 	BLU
Tupsimati 	75 	Staff 	 	SCH
Valkyrie's Hat 	75 	Head 	 	WHM/BLM/RDM/BRD/SMN
Valkyrie's Coat 	75 	Body 	 	WHM/BLM/RDM/BRD/SMN
Valkyrie's Cuffs 	75 	Hands 	 	WHM/BLM/RDM/BRD/SMN
Valkyrie's Trews 	75 	Legs 	 	WHM/BLM/RDM/BRD/SMN
Valkyrie's Clogs 	75 	Feet 	 	WHM/BLM/RDM/BRD/SMN
Veuglaire 	75 	Ranged 	 	COR
Yagrush 	75 	Club 	 	WHM
Cassandra's Earring 	60 	Ear 	 	All
Helenus's Earring 	60 	Ear 	 	All
Atrophy Chapeau +1 	99 	Head 	 	RDM
Atrophy Chapeau 	99 	Head 	 	RDM