Improve Concentrationhttps://irowiki.org/wiki/Improve_Concentration

Improve Concentration
Type:	Supportive Skill
Levels:	10, selectable
SP Cost:	20 + (Skill Level × 5)
Cast Delay	ASPD
Duration:	40 + (Skill Level × 20) seconds
Target:	Self
Status Icon
Prerequisites
(Archer & Super Novice) Vulture's Eye Lv. 1

Improve Concentration (Alt: Attention Concentrate) is a 1^st class supportive skill available as Archer and Super Novice.

Boosts AGI and DEX temporarily. This skill will also reveal any hidden enemies in a 3x3 area around the user.

Level	Stat Boost	Duration	SP Cost
1	3%	60s	25
2	4%	80s	30
3	5%	100s	35
4	6%	120s	40
5	7%	140s	45
6	8%	160s	50
7	9%	180s	55
8	10%	200s	60
9	11%	220s	65
10	12%	240s	70

• This skill affects DEX from:
  • Base DEX
  • Job Bonus Stats
  • Equipment base DEX (such as Diabolus Wing [1], Tights)
  • Owl's Eye passive skill
• This skill does not affect DEX from:
  • cards
  • enchants
  • buffs
  • DEX gained from item refine (such as Temporal Dex Boots)
  • DEX gained from item stat bonus (such as Perverse Demon Mask [1])
  • Equipment Sets (such as the Basic Shadow Set)

• Abusive Robe [1] - Level 1; Usable
• Book of Concentration [1] - Level 2; Usable
• Hero Target Suit - Level 10; Autocast on target when physically attacking
• Improve Concentration Amistr Bag - Level 1; Usable
• Juggernaut - Level 1; Usable
• Striking Mikoshi [1] - Level 10; Usable when upgrade is +8 or higher
• Anolian Card - Level 1; Autocast on target when physically attacked
• Mont Blanc - Lvl 5; Activates when consumed

• This skill has a secret animation and sound when the user is affected by Mandragora Howling.

Archer
Skills	Arrow Crafting • Arrow Repel • Arrow Shower • Double Strafe • Improve Concentration • Owl's Eye • Vulture's Eye
Quests	Archer Skill Quest • Archer Training Quest
Weapons	Bow (Arrows)

Super Novice • Hyper Novice
Skills & Expanded Skills	Acolyte / Priest / Monk	Angelus • Aqua Benedicta • Blessing • Cure • Decrease AGI • Demon Bane • Divine Protection • Gloria • Heal • Impositio Manus • Increase AGI • Iron Fists • Pneuma • Ruwach • Sanctuary • Signum Crusis • Spiritual Sphere Absorption • Status Recovery • Summon Spirit Sphere • Teleport • Warp Portal
	Archer / Hunter	Flasher • Freezing Trap • Improve Concentration • Owl's Eye • Sandman • Skid Trap • Vulture's Eye
	Mage / Wizard / High Wizard	Cold Bolt • Earth Spike • Fire Ball • Fire Bolt • Fire Pillar • Fire Wall • Frost Diver • Frost Nova • Heaven's Drive • Ice Wall • Increase SP Recovery • Jupitel Thunder • Lightning Bolt • Napalm Beat • Quagmire • Safety Wall • Sense • Sight • Sightrasher • Soul Strike • Stave Crasher • Stone Curse • Thunderstorm • Water Ball
	Merchant / Blacksmith / Alchemist	Axe Mastery • Discount • Enlarge Weight Limit • Hilt Binding • Item Appraisal • Mammonite • Overcharge • Pushcart • Vending • Weaponry Research
	Swordman / Crusader	Bash • Endure • Faith • Holy Cross • Increase HP Recovery • Magnum Break • Provoke • Sword Mastery
	Thief / Assassin / Rogue	Detoxify • Double Attack • Enchant Poison • Envenom • Hiding • Improve Dodge • Stalk • Steal
	Ultimate	Breakthrough • Help, Angel! • Transcendence
Hyper Novice Skills	Physical Skills	Self Study Tactics • Double Bowling Bash • Mega Sonic Blow • Shield Chain Rush • Spiral Pierce Max • Breaking Limit
	Magical Skills	Self Study Sorcery • Meteor Storm Buster • Jupitel Thunderstorm • Jack Frost Nova • Hell's Drive • Ground Gravitation • Napalm Vulcan Strike • Rule Break
Quests	Super Novice Job Change Guide • Super Novice Expansion Quest (Required for italicized skills) • Hyper Novice Job Change Guide
Weapons	Dagger • Rod • One Handed Sword • Mace • Axe