Rune Masteryhttps://irowiki.org/wiki/Rune_Mastery

Rune Mastery
Type:	Passive Skill
Levels:	10
Catalyst:	1 Rough Runestone, 1 Elder Branch, Varies (See table below)
Prerequisites
None

Rune Mastery (Alt: Rune Mastery) is a 3^rd class passive skill available as Rune Knight.

Enables Rune Knights to craft special consumable runes used to cast special skills similar to Magic Scrolls. Higher skill levels increase success rate, craftable runes, the maximum number of runes able to be gained from a single stone and the activation chance (see below). The higher the grade of Runestone used, the higher the chance of success.

Level	Base Success Rate
1	32%
2	34%
3	36%
4	38%
5	40%
6	42%
7	44%
8	46%
9	48%
10	50%

Success Rate: [Base_Success_Rate + (DEX ÷ 30 + LUK ÷ 10 + JobLv ÷ 10) + Runestone_Bonus - Rune_Rank]%

• To craft a rune, double click on the Rough Runestone, select the rune you wish to craft from the list, then click okay. You do not need to drag the materials to the creation prompt.

Runestone Grade	Success Rate
General	+4%
Quality	+8%
Rare	+15%
Ancient	+30%
Mystic	+60%

Rank	Success Rate
C	-5%
B	-10%
A	-15%
S	-20%

• Level 1~4 allows to produce 2 Runestone.
• Level 5~9 allows to produce 2~4 Runestones.
• Level 10 allows to produce 2~6 Runestones.

Level	Runestone	Skill	Rank	Ingredients
1	Turisus Runestone	Giant Growth	C	1 Elder Branch	1 Blue Hair	1 Claw of Desert Wolf
2	Isia Runestone	Vitality	B		1 Burning Heart
3	Pertz Runestone	Storm Blast	B		1 Light Granule	1 Tangled Chains	1 Dragon Canine
4	Hagalas Runestone	Skin of Stone	C		1 Round Shell	1 Dragon Skin
5	Asir Runestone	Determination	C		1 Light Granule	1 Ogre Tooth
6	Urj Runestone	Abundance	A		1 Horrendous Hair	1 Honey
7	Rhydo Runestone	Crushing Strike	C		1 Light Granule	1 Red Gemstone
8	Nosiege Runestone	Refresh	A		1 Light Granule	1 Destroyed Armor	1 Worn-out Magic Scroll
9	Verkana Runestone	Millenium Shield	S		1 Armor Piece of Dullahan
10	Lux Anima Runestone	Lux Anima	S		3 Light Granule	3 Gold

• General Rough Runestone and Quality Rough Runestone can be bought from Rune Seller at Prontera (prontera 168/228)Paste Ingame or Kafra Mail Annex Station (auction_03 165/41)Paste Ingame (iRO only).
• Some materials can be gotten from Merry Badger Weekly Special (iRO only).
• Gold can be purchased in Battlegrounds (iRO only).
• Runes do not work if the Rune Mastery is not even Level 1(iRO only).
• Only 1 Rune will work if the Rune Mastery is below Level 10 (Needs Further Testing, iRO only).

Skills in dark green are Active while dark red are Offensive. Note that the in-game descriptions for some of the runes are incorrect.

• Alt: Giant Growth
• Rune: Turisus.
• Effect:
  • Increase STR by 30.
  • Normal melee physical attacks will have a 30% chance to deal 2.5x damage.
  • Adds flat auto attack damage by 250% in normal map and 125% in PVP environment map (Rhydo runestone won't benefit from this flat attack bonus).
  • Property of Dragon Breath is changed to Holy.
  • Storm Slash have a 60% chance to inflict double damage.
• Target: Self.
• Fixed Cast Time: 1 second.
• Duration: 15 minutes.
• Fafnir\Rune Helm extra buffs: STR+30, INT-30 for 4 minutes.

• Alt: Vitality Activation
• Rune: Isia.
• Effect: Temporarily increases effectiveness of all incoming healing effects by 50% and decreases damage received from Reflection by 50%.
• Target: Self.
• Duration: 15 minutes.
• Fafnir\Rune Helm extra buffs: Recovers 500 HP every 10 seconds for 5 minutes.

• Alt: Storm Blast
• Rune: Pertz.
• Effect: Strikes a single target with an exploding blow to inflict physical damage to all enemies around it. The skill can trigger critical damage based on user's crit status, but only half of the critical damage bonus is applied.
• Target: Enemy.
• Damage (ATK): [((RuneMastery_Lv + STR ÷ 5.7) × 100) x (BaseLv ÷ 100)]%
• Variable Cast Time: 2 seconds.
• Cast Delay: 1 second.
• Area of Effect: 7x7.
• Fafnir\Rune Helm extra buffs: Increases the damage of Storm Blast by 30%. If upgrade level is +6 or higher, increases the damage by an additional 20%. If upgrade level is +8 or higher, increases the damage by an additional 20%.
• Enhanced by Hero Plate [1] - Increases damage by 10%
• Bestowed by Peuz's Set - Autocast on enemy when physically attacking

• Alt: Stonehard Skin
• Rune: Hagalas.
• Effect: Hardens the user's skin to increase DEF and MDEF temporarily. Due to user's hardened skin, there is a 30% chance to break the weapon of the attacker, or to reduce its ATK by 25% for 10 seconds if the attacker is a monster.
• Target: Self.
• DEF and MDEF Boost: (JobLv × RuneMastery_Lv) ÷ 4
• HP Cost: 20%
• Fixed Cast Time: 2 seconds.
• Duration: 15 minutes; Until Stoneskin's HP reaches zero.
• Fafnir\Rune Helm extra buffs: HP - 1000, Reflects 10% of incoming melee physical damage for 5 minutes.

• Alt: Fighting Spirit
• Rune: Asir.
• Effect: Temporarily increases ATK by 70 and increases ASPD. Property of Dragon Water Breath is changed to Ghost.
• Target: Self.
• ASPD Boost: 4 × (100 − Equip_ASPD)%
• Duration: 15 minutes.
• Fafnir\Rune Helm extra buffs: ATK+10, ASPD+10% for 5 minutes.

• Alt: Abundance
• Rune: Urj.
• Effect: Regenerates 60 SP every 10 seconds.
• Target: Self.
• Duration: 15 minutes.
• Fafnir\Rune Helm extra buffs: Recovers 40 SP every 10 seconds for 5 minutes.

• Alt: Crush Strike
• Rune: Rhydo.
• Effect: Builds immense strength and strikes a single target with a crushing blow to inflict physical damage. There is a 20% chance of breaking the user's weapon.
• Target: Enemy.
• Damage (ATK): [{Weapon_Lv × (Weapon_Upgrade + 6) × 100} + (Weapon_ATK) + (Weapon_Weight)]%
• Fixed Cast Time: 1 second.
• Cooldown: 30 seconds.
• Fafnir\Rune Helm extra buffs: Cannot be knocked back for 30 seconds.

• Alt: Refresh
• Rune: Nosiege.
• Effect: Cures and prevents the following Status Effects temporarily: Stun, Sleep, Curse, Petrification, Poison, Blind, Silence, Bleeding, Chaos, Frozen, Deep Sleep, Burning, Freezing, Crystallization, Marsh of Abyss and Howling of Mandragora. May be used even while Stunned, Frozen, or in Deep Sleep.
• Target: Self.
• Fixed Cast Time: 1 second.
• Cooldown: 2 minutes.
• Duration: 1 minute.
• Fafnir\Rune Helm extra buffs: Reduces the FCT of Refresh by 100%. Recovers HP and SP by 100% and cleanse Masquerade type affects: Enervation, Groomy, Ignorance, Laziness, Weakness, Unlucky.

• Alt: Millennium Shield
• Rune: Verkana.
• Effect: Produces 2 to 4 magic shields which have 1,000 HP and the user's DEF and MDEF. Any excess damage from a single instance will be blocked completely, giving the user 2 to 4 chances against mortal hits.
• Target: Self.
• Shields summoned:
  • 2 shields (50% chance)
  • 3 shields (30% chance)
  • 4 shields (20% chance)
• Cast Delay: 1 second.
• Cooldown: 1 minute.
• Duration: 15 minutes.
• Notes: Has higher damage priority than Guard and Parry but lower than Kyrie Eleison.
• Fafnir\Rune Helm extra buffs: Casts Millenium Shield for 1 minute, this effect won't work in WoE maps. Reduces physical damage to all class monsters by 50% and ranged physical damage by 50%, MATK -50%. When receiving melee physical attacks, helm refined to +6\+8 or higher adds a chance to autocast Millenium Shield lv1.

• Rune: Lux Anima.
• Effect:
  • Auto attacks have 15% chance to autocast Storm Blast.
  • Increase physical damage to all size by 30%.
  • Increase critical damage by 30%.
  • Increase melee damage by 30%.
  • Increase ranged damage by 30%.
  • Increase max HP/SP by 30%.
  • Property of Dragon Breath is changed to Shadow.
  • Property of Dragon Water Breath is changed to Neutral.
• Target: Self.
• Duration: 15 minute.

Rune skills have an activation chance that is based on the skill level of Rune Mastery, DEX and LUK. An activation failure is rarely observed in practice, as typical success rates are around 98~100%, and most failures result in no visible effect.

Success Rate: [85 + Skill_Lv + (DEX + LUK) ÷ 20]%

When a rune skill fails, the following will happen:

Effect	Chance	Details
Nothing	80%	N/A
Status Effect	10%	Inflicts oneself with one of the following Status Effects: Blind, Silence, Sleep, Poison, Stun, or Frozen.
Explosion	3%	Rune explodes, inflicting (Rune_Weight × 1,000) magic damage to self.
Recovery	3%	Restores (Rune_Weight × 1,000) HP.
Teleport	2%	Teleports to another location on the map.
Full Recovery	1%	Fully restores HP and SP.
Mass Resurrection	1%	Resurrects all dead party members.

• September 26th, 2019
  • Turisus, Asir, and Pertz runestones inventory limit removed. For other runestones, the inventory limit increased from 20 to 60.
  • Giant Growth (Turisus)
    • Amplified damage on normal attacks reduced from 300% to 200%.
    • Skill also adds flat attack damage by 250% (125% in PVP environment map).
    • Duration increased from 3 minutes to 4 minutes.
  • Determination (Asir)
    • Damage bonus increased.
      • Old: Temporarily increases ATK by 7 per party member. Party members receive 25% of the ATK bonus.
      • New: Temporarily increases ATK by 70, and an additional 7 per party member. Party members receive 50% of the ATK bonus.
  • Storm Blast (Pertz)
    • Damage formula changed.
      • Old: [RuneMastery_Lv + (INT ÷ 8) × 100]%
      • New: [RuneMastery_Lv + (STR ÷ 8) × 100]%

• October 13th, 2022
  • Inventory limit on all runestones is removed.
  • Weight of all runestones reduced from 10 to 1.
  • Runestones crafting base success rate from rough runestones is reduced.
    • Old: 53% ~ 71%
    • New: [30 + (Skill Level x 2)]%
  • Amount of runestones received from crafting is increased.
    • Old: 1 ~ 3
    • New: 2 ~ 6
  • Giant Growth (Turisus)
    • Chance to trigger amplified damage on normal attacks increased from 15% to 30%.
    • Amplified damage on normal attacks increased from 200% to 250%.
    • Weapon destruction chance is removed.
    • Property of Dragon Breath is changed to Holy during the effect of the runes.
    • Duration increased from 4 minutes to 15 minutes.
  • Vitality (Isia)
    • Skill no longer disable natural SP recovery.
    • Skill no longer reduce effectiveness of SP recovery items.
    • Skill now also reduces damage taken from melee reflect damage by 50%.
    • Duration increased from 3 minutes to 15 minutes.
  • Storm Blast (Pertz)
    • Damage formula changed.
      • Old: [RuneMastery_Lv + (STR ÷ 8) × 100]%
      • New: [(RuneMastery_Lv + (STR ÷ 5.7) × 100) x (BaseLv ÷ 100)]%
    • Skill can now deal critical damage, with critical chance status and half of the critical damage bonus.
    • Skill no longer knocks back enemies.
  • Skin of Stone (Hagalas)
    • Duration increased from 3 minutes to 15 minutes.
  • Determination (Asir)
    • Damage bonus reduced.
      • Old: Temporarily increases ATK by 70, and an additional 7 per party member. Party members receive 50% of the ATK bonus.
      • New: Temporarily increases ATK by 70.
    • Property of Dragon Water Breath is changed to Ghost during the effect of the runes.
    • Duration increased from 3 minutes to 15 minutes.
  • Abundance (Urj)
    • Duration increased from 3 minutes to 15 minutes.
  • Millenium Shield (Verkana)
    • Duration increased from 3 minutes to 15 minutes.
  • Lux Anima (Lux Anima)
    • Effect changed.
      • Old: Transfers the current active runic buff to all party members around the user.
      • New:
        • Auto attacks have 15% chance to autocast Storm Blast.
        • Increase physical damage to all size by 30%.
        • Increase critical damage by 30%.
        • Increase melee damage by 30%.
        • Increase ranged damage by 30%.
        • Increase max HP/SP by 30%.
        • Property of Dragon Breath is changed to Shadow during the effect of the runes.
        • Property of Dragon Water Breath is changed to Neutral during the effect of the runes.
    • Duration increased from 1 minute to 15 minutes.

• https://ro.gnjoy.com/news/update/View.asp?seq=204&curpage=1

Knight • Lord Knight • Rune Knight • Dragon Knight
2nd Class Skills	Bowling Bash • Brandish Spear • Cavalier Mastery • Charge Attack • Counter Attack • One-Hand Quicken • Peco Peco Ride • Pierce • Spear Boomerang • Spear Mastery • Spear Stab • Twohand Quicken
Transcendent Skills	Aura Blade • Clashing Spiral • Frenzy • Parry • Relax • Spear Dynamo • Traumatic Blow • Vital Strike
3rd Class Skills	Death Bound • Dragon Breath • Dragon Howling • Dragon Training • Dragon Water Breath • Enchant Blade • Full Throttle • Hundred Spears • Ignition Break • Phantom Thrust • Rune Mastery • Sonic Wave • Wind Cutter
4th Class Skills	Charging Pierce • Dragonic Aura • Hack and Slasher • Madness Crusher • Servant Weapon • Servant Weapon - Demolition • Servant Weapon - Phantom • Servant Weapon - Sign • Storm Slash • Two-handed Defense • Vigor
Quests	Knight Job Change Guide • Knight Skill Quest • Rebirth Walkthrough • Rune Knight Job Change Guide • Fourth Class Job Change Quest Skip • Dragon Knight Job Change Guide
Weapons	One Handed Sword • Spear • Two Handed Sword