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Io

[e][h]Io
Radiant Hero
Attributes
Base Stats
Base HP Regen
Base Mana Regen
Sight Range
Attack Range
Missile Speed
Attack Duration
Cast Duration
Base Attack Speed
Base Attack Time
Base Magic Resist
Turn Rate
Level Changes
Level
1
15
25
Health
582
1527
2202
Mana
351
627
831
Armor
3.2
6.8
9.4
Damage
39-48
81-90
111-120
Spell Amp
1.6%
3.3%
4.5%
Magic Resist
26%
29%
31%
Movement Speed Amp

0.7%
1.8%
2.6%
Most Played As
LessMore
1
2
3
4
5
Notes
Io does not need to turn to perform actions. Io can attack, move, cast abilities, and cast items without waiting for the turn to occur first. This is a unique and innate trait of Io. Io still retains a turn rate and a front/back for the purposes of directional input, and still attempts to turn after an action is performed.

Io Io, the Wisp[edit]

Recommended Roles
Support Escape Nuker

Io is everywhere, and in all things. Denounced by enemies as the great unmaker, worshiped by scholars as the twinkling of a divine eye, this strange Wisp of life-force occupies all planes at once, the merest fraction of its being crossing into physical existence at any one moment.

Like the great twin riders Dark and Light, and yet another ancient traveler whose true history is lost to the ages, Io the Wisp is a Fundamental of the universe—a force older than time, a wanderer from realms far beyond mortal understanding. Io is nothing less than the sum of all attractive and repulsive forces within the material field, a sentient manifestation of the charge that bind particles together. It is only in the controlled warping of these forces that Io's presence can be experienced on the physical plane. A benevolent, cooperative force, Io bonds its strange magnetism to others so that the power of allies might be enhanced. Its motives inscrutable, its strength unimaginable, Io moves through the physical plane, the perfect expression of the mysteries of the universe.

Abilities[edit]

Tether
QT
Targeting
Unit Target
Affects
Allied Units
Io tethers to an allied unit, granting both Io and the tethered ally bonus movement speed. While tethered, Io's health and mana regeneration is also restored to the ally. Enemy units that cross the tether are slowed.
Io may cancel tether at any time with Break Tether Break Tether.
Ally Regeneration60% / 90% / 120% / 150%
Movement Speed Bonus5% / 8% / 11% / 14%
Movement Speed Slow8% / 16% / 24% / 32%
Slow Duration0.2
Tether Break Distance900
Cast Range1800
Cast Point0
AbilityAttack Tethered Ally's Target
12
40
Does not pierce Spell Immunity.
The benevolent touch of Io brings strength from between the planes.
Notes
  • Ally regeneration is based on Io's current regeneration.
  • Io's movement speed is set to match the tethered ally's movement speed.
  • Enemy units may only be slowed once per cast of tether.
  • If Io and the target ally are further than 700 range when tether is used, Io will slingshot rapidly at 1000 speed towards the ally to a distance of 300 range. When this slingshot occurs, trees at the destination around Io within 350 range will be destroyed.
  • If Io is more than 700 range away while tethered, the tether visual gets thinner to indicate it is near breaking distance.
  • If interrupted, the tether is canceled and Io stops traveling.
  • Attacking the tethered ally's target is passive and does not interrupt Io.
Break Tether
QT
Targeting
No Target
Breaks the link to the tethered unit.
Cast Point0
0.25
Spirits
WW
Targeting
No Target
Affects
Enemy Units
Damage Type
Magical
Summons five spirits that dance in a circle around Io, damaging enemies they hit. If a spirit hits an enemy hero it explodes, damaging all enemy units in an area around it. Creeps take minor damage from touching a spirit and do not cause them to explode.
Creep Damage10 / 18 / 26 / 34
Hero Damage20 / 40 / 60 / 80
155
Collision Radius110
Explosion Radius360
Spirits Duration19
Cast Point0
26 / 24 / 22 / 20
120 / 130 / 140 / 150
Spirits passively spawn around Io every second.
Does not pierce Spell Immunity.
Io twists the particles of the universe with his unimaginable capabilities.
Notes
  • Spirits spawn one by one over 4 seconds and will initially spawn 150 units away.
  • Spirits provide 150 flying vision briefly when colliding with an enemy hero.
  • If the spell duration runs out or is recast, any spirits still circling Io will explode at their present location.
  • The spirits complete a revolution every 2.7 seconds regardless of distance from Io, meaning spirits will move more quickly when further away.
Spirits Movement
WW
Targeting
Toggle
Calls the spirits in and out.
Maximum Distance700
Minimum Distance200
Cast Point0
Overcharge
EV
Targeting
Toggle
Affects
Self
Io gains bonus attack speed and damage resistance.
If Io is connected to an ally with Tether Tether, they also gain the bonuses.
Bonus Attack Speed50 / 80 / 110 / 140
Max HP Regen0.6% / 0.8% / 1% / 1.2%
Duration8
Cast Point0
16
40 / 60 / 80 / 100
Drawing on the energy of matter from all worlds, Io begins the unraveling of time.
Relocate
RR
Targeting
Point Target
Affects
Self
Teleports Io and an ally connected by Tether Tether to any location on the map. After the spell expires, Io along with any tethered ally will return to the location where Relocate was cast from.
Delay3.5 / 3.25 / 3
Duration12
Cast RangeGlobal
Cast Point0
90 / 75 / 60
     30
175
Io is the embodiment of the mystery of the universe.
Notes
  • Double clicking Relocate teleports to the fountain.
  • Destroys trees within 300 range of the teleport destination and return location.
  • The visual effect on Io, visual effect at the destination, and minimap marker of the destination are also visible to enemies.

Talent Tree[edit]

Talent Tree
Attack Tether Tether Ally's Target 25 -30s Relocate Relocate Cooldown
+15 Armor 20 +75 Spirits Spirits Hero Damage
+13% Spell Lifesteal 15 +120 Gold/Min
+45 Damage 10 +5 Health Regen

Recommended Items[edit]

Starting Items Early Game
Observer Ward
Animal Courier
Tango
Bottle
Urn of Shadows
Boots of Speed
Healing Salve
Clarity
Magic Stick
Mid Game Late Game
Magic Wand
Arcane Boots
Mekansm
Glimmer Cape
Ghost Scepter
Force Staff
Town Portal Scroll

General Strategy[edit]

Io has a talent for making allies more effective. A powerful companion, the wisp's tether speeds allies and stops enemies. Capable of linking to and teleporting across the battlefield with an ally, Io can make a dangerous ally even deadlier.
Io (In-Game Description)

Overview


Skill Build

Level12345678910
Spell
Level111213141516182025
Spell

Early Game

Mid Game

Late Game

Version History[edit]

Version Balance Changes
7.23
  • Buff Base armor increased from -1 to 1
  • Buff Tether now slows enemies by 8/16/24/32%
  • Buff Overcharge:
    • Cooldown reduced from 18 to 16
    • Now provides 0.6/0.8/1/1.2% Max HP Regen per second instead of damage reduction
    • Still provides attack speed
    • Note: regeneration is applied on both targets with Tether, and thus the Tether target regenerates more
  • Rework Level 10 Talent changed from +90 Gold/Min to +5 Health Regen
  • Rework Level 15 Talent changed from +8 Health Regen to +13% Spell Lifesteal
  • Rework Level 15 Talent changed from Spirits Apply Slow to +120 Gold/Min
7.22g
  • Rework Level 10 Talent changed from Spirits Apply Slow to +90 Gold/Min
  • Rework Level 15 Talent changed from +75 Spirits Hero Damage to Spirits Apply Slow
  • Rework Level 20 Talent changed from +150 Gold/Min to +75 Spirits Hero Damage
7.22e
  • Nerf Tether heal/restore transfer reduced from 90/110/130/150% to 60/90/120/150%
7.22d
  • Rework Level 20 Talent changed from Tether Grants Scepter Bonus to +15 Armor
7.22c
  • Nerf Attack range reduced from 575 to 500
  • Buff Base armor increased from -2 to -1
  • Nerf Strength gain increased from 2.5 to 3
  • Nerf Tether regen reduced from 105/120/135/150% to 90/110/130/150%
  • Buff Tether cancel now has a 0.25s cooldown to prevent accidental uses
  • Nerf Spirits no longer slow
  • Rework Level 10 Talent changed from +20% XP Gain to Spirits Apply Slow
7.22
  • Playable in Competitive Added to Captains Mode
  • Buff Added Scepter upgrade:
    • Spirits now passively spawn around you constantly every second
    • (Still max of 5 spirits at a given time)
  • Nerf Tether pull can now be interrupted if stunned during it
7.21b
  • Nerf Tether no longer makes you unslowable
  • Buff Spirits no longer has a toggle cooldown
  • Nerf Spirits min range increased from 100 to 200
  • Nerf Spirits rotation interval from every 2.4 seconds to 2.7
  • Rework Spirits no longer does a micro animation interruption when initially casting
    • (Already has zero cast point)
  • Nerf Relocate mana cost increased from 100 to 175
  • Rework Level 15 Talent changed from Tether Grants Scepter Bonus to +8 Health Regen
  • Rework Level 20 Talent changed from +16 Health Regen to Tether Grants Scepter Bonus
7.21
  • Removed Temporarily removed from Captains Mode
  • Buff Tether now transfers health and mana even when Io is at max hp/mp
  • Rework Overcharge now has an 18 second cooldown and an 8 second duration
    • No longer has a 2 second toggle
  • Rework Overcharge now costs 40/60/80/100 mana to cast
    • No longer cost 6% of health and mana per second
  • Buff Overcharge attack speed bonus increased from 40/50/60/70 to 50/80/110/140
  • Buff Overcharge damage reduction increased from 5/10/15/20% to 15/20/25/30%
  • Nerf Relocate delay increased from 2.7/2.35/2 to 3.5/3.25/3
  • Buff Relocate cooldown reduced from 130/110/90 to 90/75/60
  • Buff Relocate is now cast delay again instead of channeling
    • (Being interrupted, silenced, rooted, etc. will cancel the ability)
  • Nerf Level 25 Talent changed from -60s Relocate Cooldown to -30s
7.20d
  • Nerf Tether heal/mp transfer rate reduced from 1.2/1.3/1.4/1.5 to 1.05/1.2/1.35/1.5
7.20
  • Nerf Spirits cooldown increased from 26/22/18/14 to 26/24/22/20
7.19b
  • Nerf Spirits cooldown increased from 20/18/16/14 to 26/22/18/14
  • Nerf Level 10 Talent reduced from +25% XP to +20%
7.18
  • Nerf Relocate now has a channel time instead of a cast delay
7.17
  • Nerf Spirits damage reduced from 25/50/75/100 to 20/40/60/80
  • Nerf Tether movement speed reduced from 7/10/13/16 to 5/8/11/14%
  • Nerf Level 10 Talent reduced from +60 Damage to +45
  • Nerf Level 20 Talent reduced from +20 Health Regen to +15
7.16
  • Nerf Base movement speed reduced from 290 to 280
  • Nerf Level 15 Talent reduced from +90 Spirits Damage to +75
  • Rework Level 20 Talent changed from Attacks Tether Ally's Target to +20 Health Regen
  • Rework Level 25 Talent changed from +50 Health Regen to Attacks Tether Ally's Target
7.14
  • Buff Tether can now target Spell Immune allies
  • Buff Tether cast point changed from 0.001 to 0
  • Nerf Tether no longer applies slow on impact
  • Buff Spirits now apply a 20/40/60/80% movement speed slow on impact for 0.3 seconds
  • Rework Spirits now have two fixed positions they go to, 700 and 100
  • Rework Spirits In/Out is just one ability now, alternating the direction
    • No longer granular with toggles, but just a single press action
    • Has a 1.5 second cooldown, same hotkey as spirits ability
    • Base cooldown/duration is still the same
  • Buff Spirits creep damage increased from 8/14/20/26 to 10/18/26/34
  • Buff Spirits mana cost from 150 to 120/130/140/150
  • Buff Spirits collision AoE increased from 70 to 110
  • Buff Spirits explosion damage AoE increased from 300 to 360
  • Rework Level 10 Talent changed from +400 Spirits Max Range to +25% XP
  • Rework Level 25 Talent changed from Tether Stuns to -60s Relocate Cooldown
7.13b
  • Nerf Base movement speed reduced from 295 to 290
7.12
  • Buff Tether now sets your movement speed to match the tethered target's speed
  • Buff Tether no longer has a duration
  • Nerf Tether movement speed rescaled from 10/12/14/16% to 7/10/13/16%
  • Nerf Tether regen sharing rescaled from 1.5× to 1.2/1.3/1.4/1.5×
  • Nerf Relocate cooldown increased from 120/100/80 to 130/110/90
  • Nerf Base damage reduced from 26-35 to 22-31
7.10
  • Buff Tether duration increased from 12 to 14
7.07
  • Nerf Relocate cooldown increased from 100/80/60 to 120/100/80
  • Nerf Max Spirits range reduced from 875 to 700
  • Rework Reworked Talent Tree
7.06e
  • Nerf Spirits mana cost increased from 120/130/140/150 to 150
7.06d
  • Nerf Tether movement speed reduced from 13/14/15/16% to 10/12/14/16%
7.06c
  • Nerf Overcharge Health/Mana drain from 4.5% to 6%
7.06
  • Rework Replaced Respawn Talent: Tether Stuns (Level 25)
7.03
  • Nerf Relocate cooldown rescaled from 90/75/60 to 100/80/60
7.02
  • Buff Level 25 Talent from -40s Respawn Time to -50s
7.00
  • New Added Talent Tree
6.88e
  • Nerf Relocate delay increased from 2.5/2.25/2 to 2.7/2.35/2
6.88
  • Nerf Tether movement speed bonus reduced from 14/15/16/17% to 13/14/15/16%
6.84c
  • Nerf Tether movespeed bonus reduced from 17% to 14/15/16/17%
6.84
  • Buff Relocate double click now teleports to fountain
6.83
  • Buff No longer requires turning to perform any actions
6.79
  • Nerf Tether now does a 100% MS/AS slow instead of a stun
6.78c
  • Nerf Tether movement bonus decreased from 20% to 17%
6.78
  • Nerf Spirits no longer provide vision
    • (Except temporarily when they collide with an enemy hero)
  • Nerf Overcharge hp/mp cost increased from 3.5% to 4.5%
6.75
  • Nerf Overcharge HP/MP cost over time increased from 2.5% to 3.5%
  • Buff Tether regeneration transfer now heals the Tethered unit at 1.5× the rate of Wisp
6.74
  • Playable in Competitive Added to Captains Mode
6.72
  • Buff Base damage increased from 33-42 to 43-52
  • Buff Attack range increased from 525 to 575
  • Buff Tether stun duration rebalanced from 1/1.25/1.5/1.75 to 0.75/1.25/1.75/2.25
  • Buff Spirits Oscillation subabilities no longer interrupt Wisp's movement
  • Buff Spirits now circle slightly faster when there are fewer alive
  • Buff Spirits life duration increased by 3 seconds
  • Buff Spirits now spawn over 4 second interval instead of 6
  • Rework Overcharge Reworked
  • Nerf Spirits no longer slow
  • Nerf Tether movement speed bonus reduced from 15/20/25/30% to 20%
6.71
  • Nerf Tether movement speed bonus reduced from 20/25/30/35 to 15/20/25/30
  • Nerf Spirits cooldown rescaled from 14 to 20/18/16/14
6.69
  • Nerf Tether Stun duration reduced from 1.25/1.5/1.75/2 to 1/1.25/1.5/1.75
  • Nerf Relocate cooldown increased from 80/60/40 to 90/75/60
6.68
  • New New Hero

Notable Players[edit]

ana 
GH 
fy 
y` 

See also[edit]

External links[edit]

Guides[edit]

References[edit]