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MDEF

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Magic Defense is the total magical defense that is factored upon magic damage, which is generally based on MATK as whole or partially. However, there are exceptions.

The descriptions used here refer to Hard and Soft MDEF. These names are used for clarity. The vast majority of players do not use these terms in general conversation, and instead refer Armor Mdef (hard) and INT Mdef (soft). Hard MDEF works as a relative reduction, whereas Soft MDEF is a subtractive reduction.

To obtain the final damage,apply Hard MDEF first and then apply soft MDEF.

It is shown as A + B in the Status Window, where A represents the Soft MDEF and B represents the Hard MDEF.

Hard MDEF

Effects of Hard MDEF on incoming damage

Hard m. defense, also known as "armor" or "equipment" m. defense reduces, incoming magic damage multiplicatively.

  • Damage after Hard MDEF = Damage × [(1,000 + HardMDEF) ÷ (1,000 + HardMDEF × 10)]

For example, a player with a Hard MDEF of 60 will have incoming m. damage reduced by about ⅓, and a player with a Hard MDEF of 125 will have incoming damage reduced by half.

Hard m. defense has a base value of 0, and is increased by equipment, some skills, and items.

Every 1 Hard M.DEF provides resistance vs. the following Status Effects:

  • Decrease AGI: Decreases chance from being inflicted
  • Frozen: -1% chance from being inflicted
  • Stone: -1% chance from being inflicted

Additive Bonuses

Item/Skill Max Modifier Additional notes
4240.png Arclouze Card
+3 Shield. Only if refined to +5 or lower.
4290.png Cat O' Nine Tails Card
+3 Footgear. May reflect magic back to the caster.
4386.png Detardeurus Card
+1 Armor. Gives immunity to Frozen.
4405.png Frus Card
+3 Armor. Mage class only. May reflect magic back to the caster.
4278.png Gibbet Card
+5 Headgear. Only if refined to +5 or lower.
4150.png Goat Card
+5 Armor. Only if refined to +5 or lower.
4287.png Kapha Card
+8 Garment. Only if refined to +5 or lower.
1646.png La'cryma Stick
Var +UpgradeLv
4200.png Megalith Card
+7 Footgear. Only if refined to +5 or lower.
1661.png Mental Destroyer
+20
4150.png Rideword Card
+1 Headgear. Acolyte class only.
4414.png Seeker Card
+10 Shield.
4220.png Solider Card
+2 Armor.
4226.png Sting Card
+5 Shield. Only if refined to +9 or higher.
4211.png Vocal Card
+3 Garment.
4678.png Warlock Kathryne Card
+80 Garment. If used by Warlock.

Multiplicative Bonuses

Item/Skill Max Modifier Additional notes
Nyang Grass.png Nyang Grass
-50% / -100% Monsters: -50%. Players: -100%.
4302.png Tao Gunka Card
-50% Armor. Doubles Max HP.

Soft MDEF

Soft magic defense, also known as "INT" magic defense, reduces incoming magic damage directly.

SoftMDEF      = floor((INT + (VIT ÷ 5) + (DEX ÷ 5) + (BaseLv ÷ 4))
TotalSoftMDEF = [(SoftMDEF + BonusA) × (1 + BonusB ÷ 100)]
  • BonusA is the sum of additive bonuses.
  • BonusB is the sum of multiplicative bonuses.

Monsters use a different SoftMDEF formula.

SoftMDEF      = floor(BaseLvl ÷ 4) + floor (VIT ÷ 10) + floor(INT ÷ 5)

Additive Modifiers

Multiplicative Modifiers

Bypassing MDEF

Calculation

Final MDEF = (Total_Mdef - Sum_MdefReduceValues) × (1 − Sum_MdefBypassPercent ÷ 100)
  • For example, if a player has 25% MDEF Bypass from Expiatio buff, 70% MDEF Bypass from Armor of White Thread [1], and Odin's Power Level 2 (-40 MDEF) is casted on an enemy with 100 Hard MDEF, the enemy's final MDEF is calculated as:
    • Final MDEF = (100 - 40) x (1 - (25+70) ÷ 100)

The skills and equipment below are known to bypass MDEF. All effects stack additively.

Skills

Skill Notes
Expiatio.png Expiatio
Bypass 5% MDEF per skill level (Up to 25% at level 5)

Weapons

Weapon Notes
1665.png Piercing Staff [2]
Bypass 10% of hard magic defense of normal monsters and boss monsters when performing a magical attack. Bypass an additional 1% of hard magic defense of normal monsters and boss monsters when performing a magical attack per upgrade level of the item.
1636.png Thorn Staff of Darkness
Bypass 1% of Mdef of Normal, Boss, Player targets when performing a magical attack per upgrade level of the item.

Armor

Weapon Notes
19426.png King of Spirit Circlet
If upgrade level is +10 or higher, bypass 100% of hard magic defense of All race targets when performing a magical attack.
28507.png Magician's Gloves [1]
Bypass 50% of hard magic defense of All Races when performing a magical attack.
18794.png Ordinary Black Magician Hat [1]
Bypass 10% of hard magic defense of normal monsters when performing a magical attack. Bypass an additional 4% of hard magic defense of normal monsters when performing a magical attack per upgrade level of the item, where the effect caps out at 30%.
15419.png Armor of White Thread [1]
Bypass 10% of hard magic defense of all race targets when performing a magical attack.
If upgrade level is +7 or higher, bypass an additional 20% of hard magic defense of all race targets when performing a magical attack.
If upgrade level is +8 or higher, bypass an additional 20% of hard magic defense of all race targets when performing a magical attack.
If upgrade level is +9 or higher, bypass an additional 20% of hard magic defense of all race targets when performing a magical attack.
5360.png Wickebine's Black Cat Ears
Adds a 5% chance to bypass 25% of hard magic defense on normal monsters and players for 5 seconds when performing a magical attack.
20963.png Temporal Str Manteau [1]

20963.png Temporal Agi Manteau [1]

20963.png Temporal Vit Manteau [1]

20963.png Temporal Int Manteau [1]

20963.png Temporal Dex Manteau [1]

20963.png Temporal Luk Manteau [1]
28565.png Perverse Demon Mask [1]
Bypass 15% of hard magic defense of normal monsters, Boss monsters and players when performing a magical attack for every 18 base STR.
La'cryma Stick & Pororoca Shoes Set Bypass 5% of hard magic defense of normal monsters and boss monsters when performing a magical attack per level of Frost Nova known.
Survivor's Shoes & Survivor's Rod Set Bypass 50% of hard magic defense of normal monsters and boss monsters when performing a magical attack.
450132.png Magical Cloth [1] & True Celia Alde Card Set Ignores magical defense of all races by 50%.
Warning: Card requirement may be wrong, needs testing

Cards

Card Notes
4365.png High Wizard Card
Bypass 100% of hard magic defense of normal monsters when performing a magical attack.
4440.png Necromancer Card
When compounded to a Rod, Int +1 and ignores 2% of the MDEF of enemies.
4374.png Vesper Card
Bypass 30% of hard magic defense of Boss monsters when performing a magical attack.
Neo Punk Card & Big Ben Card Set Bypass 50% of hard magic defense of Formless and Demon race targets when performing a magical attack.
Nightmare Arclouse Card & Nightmare Mimic Card Set Bypass 50% of hard magic defense of Brute and Undead race targets when performing a magical attack.

See Also