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universal

Io

Links to its allies to buff them

Ranged

Amplify your hard carry's potential with Io, an ultimate save support specializing in making allies more effective. Tethering to a core speeds allies and stops enemies, allowing Io to sustain them infinitely and easily orchestrate global ganks by teleporting both heroes anywhere on the map.

3/3
Complexity
3/3
Support
2/3
Escape
1/3
Nuker

Base Stats

Io
Health538+0.3 / s
Mana327
AttributeBase / Growth per lvl
strengthStrength
19+3 per lvl
agilityAgility
14+1.6 per lvl
intelligenceIntelligence
21+1.7 per lvl
StatValue
DamageDamage
58 – 64
ArmorArmor
3.3
Movement SpeedMovement Speed
320
Attack RangeAttack Range
500

Win Rates by Rank

Patch7.41
Public Win Rate49.59%144.5K matches
Pro Win Rate100%1W / 0L
Pro Bans787.5% ban rate
RankPicksWin Rate
HeraldHerald
9.4K
49.38%
GuardianGuardian
25.2K
49.52%
CrusaderCrusader
30.6K
49.43%
ArchonArchon
28.7K
49.31%
LegendLegend
21.2K
49.99%
AncientAncient
14.1K
49.72%
DivineDivine
15.3K
50.04%

Innate Ability

Innate
Equilibrium
Passive, Hidden

Io gains outgoing damage amplification the closer it is to full health, and Health Restoration and Healing Amplification the closer it is to zero health.

Max Damage Amp5%
Max Heal Amp5%

Talent Tree

-2s Relocate Cast Delay
25
Attack Tethered Ally's Target (50% damage)
+0.2% Overcharge Max HP Regen Bonus
20
-30s Relocate Cooldown
+5% Tether Movement Speed
15
+50 Spirits Hero Damage
+1.5s Overcharge Duration
10
+8 Strength

Abilities

Tether
Tether
Pierces BKB
Unit Target

Tethers Io to an allied unit, granting bonus movement speed to both. When Io restores health or mana, the tethered unit gains a portion of that amount. The tether breaks when the allied unit moves too far away, or Io cancels the tether. Tether slows enemies touching it.

Max Tether Distance1000
Movement Speed Bonus6% / 8% / 10% / 12%
Latch Distance700
Latch Speed1000
Hp/Mana Transfer60% / 80% / 100% / 120%
Tether Mana Amp60 / 80 / 100 / 120
Enemy Move/Attack Slow15% / 30% / 45% / 60%
Slow Duration0.2s
Tick Rate0.5
Cast Range1600
Mana40
Cooldown12s
Spirits
Spirits
Magical
No Target, Instant Cast

Summon five particle spirits that dance in a circle around Io. If a particle collides with an enemy hero, it explodes, damaging all enemy units in an area around it. Creeps take minor damage from touching a particle spirit, but do not cause them to explode. When its duration ends, any remaining Spirits explode.

Creep Damage12 / 18 / 24 / 30
Hero Damage30 / 50 / 70 / 90
Revolution Time5s
Min Range200
Oscillation Radius650
Hero Hit Radius110
Explosion Radius360
Hit Radius150
Spirit Movement Rate250
Duration15s
Spirit Amount5
Movement Slow0%
Spirit Spawn Time1s
Duration15s
Mana90 / 100 / 110 / 120
Cooldown15s
Overcharge
Overcharge
No Target, Instant Cast

Io gains attack speed, spell amplification, and health regeneration based on max health. If Io is Tethered to an ally, that unit also gains any bonuses granted by Overcharge.

Bonus Attack Speed35 / 60 / 85 / 110
Bonus Spell Amp8% / 10% / 12% / 14%
Bonus Magic Resistance0%
Max Health Regen0.5% / 0.6% / 0.7% / 0.8%
Duration8s
Mana40 / 60 / 80 / 100
Cooldown25 / 22 / 19 / 16s
Spirits In
Spirits In
Instant Cast, Hidden

Sends the spirits closer to you. Can be toggled on and off.

Cooldown0s
Spirits Out
Spirits Out
Instant Cast, Hidden

Sends the spirits farther away from you. Can be toggled on and off.

Relocate
Relocate
Point Target

Teleports Io and a tethered ally to any location. After the spell expires, Io and the tethered ally will return to their original location. Double-click to teleport to your team's base fountain.

Cast Time3.5 / 3.25 / 3s
Return Time12s
Mana175
Cooldown90 / 80 / 70s
Break Tether
Break Tether
Hidden, No Target

Break the link to the tethered unit.

Cooldown1s

Aghanim's Upgrades

SpiritsScepter
Aghanim's ScepterUpgrades Spirits

Spirits now passively spawn around Io constantly every second up to the max. Spirits colliding with enemy Heroes slows them briefly. Can be activated to explode spirits.

TetherShard
Aghanim's ShardUpgrades Tether

Tether damages enemies touching it. Io is healed for 50% of the damage done.