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Spirits reworked in 7.21b177 lines of changes across 43 patches, condensed below to the ones that still matter.
30 buffs and 42 nerfs in total: roughly even.
Biggest ability changes
- ▲Spirits Now remembers the radius of the spirits between castsadjusted 24 times across 13 patches, net buff
- ▼Tether HP/Mana Transfer decreased from 60/80/100/120% to 55/75/95/115%adjusted 31 times across 19 patches, net nerf
- ▼Overcharge Now also provides 35/60/85/110 Attack Speed and 8/10/12/14% Spell Amplification to Io and any tethered Alliesadjusted 13 times across 8 patches, net nerf
- ▲Relocate Cooldown decreased from 100/90/80s to 90/80/70sadjusted 7 times across 5 patches, net buff
- ▼Equilibrium Max Damage Amp and Max Heal Amplification decreased from 5 + 0.5% per level to 4 + 0.4% per leveladjusted 3 times across 2 patches, net nerf
- ◆Spirits In Out is just one ability now, alternates the direction (has a 1.5 second cooldown, same hotkey as spirits ability)
- ◆Spirits In Info Base cooldown/duration is still the same
Innate
- ◆Sight Seer Innate removed (it was added in 7.36)
Aghanim’s upgrades
- ▲Scepter Aghanim's Scepter Movement Slow increased from 15% to 25%changed 4 times, latest shown
- ▼Shard No longer upgraded with Aghanim's Shardchanged 8 times, latest shown
Base stats
- ▲Strength gain increased from 2.7 to 3.0adjusted 3 times across 3 patches, net buff
- ▼Base Damage increased by 7adjusted 3 times across 3 patches, net nerf
- ◆Damage gain per level decreased from +4.2 to +2.8adjusted 2 times across 2 patches, roughly even
- ◆Base movement speed increased from 280 to 320adjusted 2 times across 2 patches, roughly even
- ▼Damage at level 30 decreased by 46 (from 192-198 to 146-152)
- ▼Attack range reduced from 575 to 500
- ▼Damage on level 1 decreased by 6 (from 45-51 to 39-45)
- ▲Base Strength increased from 17 to 19
- ▼Base Intelligence decreased from 23 to 21
- ▲Damage at level 1 increased by 4 (from 41-47 to 45-51)
- ▼Base damage reduced by 4
- ▲Base armor increased by 1
- ◆Damage at level 1 unchanged (45–51)
Talents changed
- ◆Lv10 talent Strength increased from +7 to +8
- ◆Lv15 talent Spirits Damage decreased from +50% to +40%
- ◆Lv20 talent Relocate Cooldown Reduction increased from 25s to 30s
- ◆Lv25 talent Attack Tethered Ally's Target Damage decreased from 75% to 50%
Facets were part of the game from 7.36 and were removed in 7.41. Io had 5 facet changes in between.
Most recent change patch 7.41f, Sep 2026
- ▼Lv15 talent Level 15 Talent Spirits Damage decreased from +50% to +40%
Current abilities
TetherTethers 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.
SpiritsSummon 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.
OverchargeIo 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.
Spirits InSends the spirits closer to you. Can be toggled on and off.
Spirits OutSends the spirits farther away from you. Can be toggled on and off.
RelocateTeleports 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.
Break TetherBreak the link to the tethered unit.
Equilibrium innateIo gains outgoing damage amplification the closer it is to full health, and Health Restoration and Healing Amplification the closer it is to zero health.
What players buy on Io
Starting items
- Sage's Mask 175g
- Magic Stick 200g
Early game
- Helm of the Dominator 2550g
- Soul Ring 805g
- Null Talisman 505g
Mid game
- Aghanim's Scepter 4200g
Late game
- Mjollnir 5500g
- Satanic 5050g
- Crystalys 2000g
- Soul Booster 3000g
Most bought first, from item purchases in recent professional matches (OpenDota, Nov 2026). Public games can differ.