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IO / POSITION 5 / MANUAL RESEARCH SCOPE

Io / Hard support

Make the connection useful. Plan where your ally wants to move, and where you can safely stay connected.

This role is your selection, not a claim that Io is recommended or statistically successful in this position. Ability overview applies across roles; the support planning below is editorial.

Io

Hard support · Position 5

Hard support · Position 5
Observed pro matches

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구매·스킬 통계 →영웅 집계 통계 →수동 A/B 비교 →관측 기록의 포지션은 선택한 Position 5로 필터링되지 않습니다.
Skills, talents & facets · 영웅 참고 정보

Abilities 8 listed links

Source slot 1TetherArt source ↗

Tether

wisp_tether · ID 5485

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.

사용 방식
Unit Target
마나 소모 / 재사용 대기시간
40 / 12
원천 속성 (15)
MAX TETHER DISTANCE:
1000 · 원천 키: radius
MOVEMENT SPEED BONUS:
6% / 8% / 10% / 12% · 원천 키: movespeed
LATCH DISTANCE:
700 · 원천 키: latch_distance
LATCH SPEED:
1000 · 원천 키: latch_speed
HP/MANA TRANSFER:
55% / 75% / 95% / 115% · 원천 키: tether_heal_amp
TETHER MANA AMP:
55 / 75 / 95 / 115 · 원천 키: tether_mana_amp
SELF BONUS:
0 · 원천 키: self_bonus
ENEMY MOVE/ATTACK SLOW:
15% / 30% / 45% / 60% · 원천 키: slow
SLOW DURATION:
0.2 · 원천 키: slow_duration
DAMAGE PER SECOND:
0 · 원천 키: damage
DAMAGE TO HEAL:
0 · 원천 키: damage_to_heal
TICK RATE:
0.5 · 원천 키: tick_rate
TETHERED UNIT DAMAGE:
0 · 원천 키: tethered_unit_damage
CAST RANGE:
1600 · 원천 키: abilitycastrange
CAST TIME:
0 · 원천 키: abilitycastpoint
Source slot 2SpiritsArt source ↗

Spirits

wisp_spirits · ID 5486

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.

사용 방식
No Target / Instant Cast
마나 소모 / 재사용 대기시간
원천 수치 미확인 / 15
원천 속성 (17)
CREEP DAMAGE:
12 / 18 / 24 / 30 · 원천 키: creep_damage
HERO DAMAGE:
30 / 50 / 70 / 90 · 원천 키: hero_damage
REVOLUTION TIME:
5 · 원천 키: revolution_time
MIN RANGE:
200 · 원천 키: min_range
DEFAULT RADIUS:
425 · 원천 키: default_radius
OSCILLATION RADIUS:
650 · 원천 키: max_range
HERO HIT RADIUS:
110 · 원천 키: hero_hit_radius
EXPLOSION RADIUS:
360 · 원천 키: explode_radius
HIT RADIUS:
150 · 원천 키: hit_radius
SPIRIT MOVEMENT RATE:
250 · 원천 키: spirit_movement_rate
DURATION:
15 · 원천 키: spirit_duration
SPIRIT AMOUNT:
5 · 원천 키: spirit_amount
MOVEMENT SLOW:
0% · 원천 키: scepter_slow_pct
SLOW DURATION:
0 · 원천 키: scepter_slow_duration
SPIRIT SPAWN TIME:
1 · 원천 키: spirit_spawn_time
DURATION:
15 · 원천 키: abilityduration
CAST TIME:
0 · 원천 키: abilitycastpoint
Source slot 3OverchargeArt source ↗

Overcharge

wisp_overcharge · ID 5487

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.

사용 방식
No Target / Instant Cast
마나 소모 / 재사용 대기시간
원천 수치 미확인 / 원천 수치 미확인
원천 속성 (9)
BONUS ATTACK SPEED:
35 / 60 / 85 / 110 · 원천 키: bonus_attack_speed
BONUS SPELL AMP:
8% / 10% / 12% / 14% · 원천 키: bonus_spell_amp
BONUS ARMOR:
0 · 원천 키: bonus_armor
BONUS MAGIC RESISTANCE:
0% · 원천 키: bonus_mres
MAX HEALTH REGEN:
0.5% / 0.6% / 0.7% / 0.8% · 원천 키: hp_regen
DURATION:
8 · 원천 키: duration
SPELL LIFESTEAL:
0 · 원천 키: spell_lifesteal
UNSLOWABLE:
0 · 원천 키: unslowable
CAST TIME:
0 · 원천 키: abilitycastpoint
Source slot 4Spirits InArt source ↗

Spirits In

wisp_spirits_in · ID 5490

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

사용 방식
Instant Cast / Hidden
마나 소모 / 재사용 대기시간
원천 필드 미제공 / 0
Source slot 5Spirits OutArt source ↗

Spirits Out

wisp_spirits_out · ID 5493

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

사용 방식
Instant Cast / Hidden
마나 소모 / 재사용 대기시간
원천 필드 미제공 / 원천 필드 미제공
Source slot 6RelocateArt source ↗

Relocate

wisp_relocate · ID 5488

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.

사용 방식
Point Target
마나 소모 / 재사용 대기시간
175 / 원천 수치 미확인
원천 속성 (3)
CAST TIME:
3.5 / 3.25 / 3 · 원천 키: cast_delay
RETURN TIME:
12 · 원천 키: return_time
CAST TIME:
0 · 원천 키: abilitycastpoint
Source slot 7Break TetherArt source ↗

Break Tether

wisp_tether_break · ID 5489

Break the link to the tethered unit.

사용 방식
Hidden / No Target
마나 소모 / 재사용 대기시간
원천 필드 미제공 / 1
Source slot 8EquilibriumArt source ↗

Equilibrium

wisp_equilibrium · ID 1770

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.

사용 방식
Passive / Hidden
마나 소모 / 재사용 대기시간
원천 필드 미제공 / 원천 필드 미제공
원천 속성 (2)
MAX DAMAGE AMP:
4% · 원천 키: damage_amplification
MAX HEAL AMP:
4% · 원천 키: heal_amplification

Talents

Provider tiers and choices, not a measured leveling sequence. Unresolved names remain visible.

Provider tier 1

+1.5s Overcharge Duration

N/A

special_bonus_unique_wisp_overcharge_duration

Provider tier 1

+8 Strength

N/A

special_bonus_strength_8

Provider tier 2

+5% Tether Movement Speed

N/A

special_bonus_unique_wisp_3

Provider tier 2

+50% Spirits Damage

N/A

special_bonus_unique_wisp

Provider tier 3

+0.2% Overcharge Max HP Regen Bonus

N/A

special_bonus_unique_wisp_10

Provider tier 3

-30s Relocate Cooldown

N/A

special_bonus_unique_wisp_6

Provider tier 4

-2.0s Relocate Cast Delay

N/A

special_bonus_unique_wisp_relocate_delay

Provider tier 4

Attack Tethered Ally's Target (=50% damage)

N/A

special_bonus_unique_wisp_4

Facets

Reference definitions may include deprecated facets. None is selected or inferred from a match.

Deprecated in source

Kritzkrieg

Overcharge grants attack speed and spell amplification to Io and any Tethered allies.

wisp_kritzkrieg

Deprecated in source

Medigun

Overcharge grants armor and magic resistance to Io and any Tethered allies.

wisp_medigun

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저장한 참고 정보 보기 →
Source, freshness & coverage
Provider
odota/dotaconstants
Source revision
e7705ee975ebec2a88a59a7b455d4cae5dc69ca1
Source updated
2026-07-28T23:06:33Z
Retrieved
2026-09-10T13:22:58.059Z
Verified current patch
N/A
Inspect pinned source

Reference snapshot coverage: 127 heroes · 3226 ability records · 596 item records. Includes provider-listed hidden and legacy records. Snapshot completeness does not prove current-patch completeness.

Dota 2 artwork © Valve. Independent project; not affiliated with Valve. Official Dota 2 source. Missing or unbound art is explicitly N/A; imagery does not establish a current patch.

Game facts are reference metadata, not match statistics. Hero/role selections are manual. Candidate players, matchup samples, win rates and observed item/skill timelines: N/A unless separately evidenced.

Official ability overview

Know what you are coordinating

  • Tether: connects Io to an ally, shares movement benefits and some restored health or mana; separation can break the link.
  • Spirits: summons five orbiting spirits. Enemy-hero collisions cause explosions.
  • Overcharge: gives Io bonuses that also benefit a tethered ally.
  • Relocate: moves Io and a tethered ally, then returns them to the original location.

Paraphrased from Valve's Io page, reviewed 2026-09-10. No patch-specific numbers or item prescriptions are asserted. Check the current game before playing.

Editorial · support planning

Three decisions before a fight

  1. Choose a partner, not just a target. Ask which ally can use sustained support and whether you can follow without entering the same danger.
  2. Keep an exit visible. Think about terrain and separation before tethering forward. If you must retreat, communicate before breaking the connection.
  3. Plan the return. Before using Relocate, consider both the arrival and the original location. A rescue is not finished at the first teleport.

After the game, compare what you intended with what happened. A note about one decision is more honest than inventing a universal item route.

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Save only when you choose to. Notes stay in this browser; they are not uploaded, linked to Steam, or treated as match evidence.

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