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DOTA 2 / HERO HISTORY

Techies changes

Balance notes across the versions listed by Valve. An unchanged patch is a small victory for your muscle memory.

Change record

46 patches with recorded changes · 118 of 118 listed patches readable.

Coverage: Feb 1, 2018 to Sep 15, 2026. This feed does not include every patch in Dota’s lifetime.

Inspect coverage by patch

Jun 4, 2026

Techies in 7.41d

  • Reactive TazerDisarm duration decreased from 2.4/2.7/3/3.3s to 2.25/2.5/2.75/3s
  • Proximity MinesDebuff Duration decreased from 5s to 4s

May 6, 2026

Techies in 7.41c

  • Base Mana Regen decreased by 0.5
  • Intelligence gain decreased from 3.0 to 2.7
  • Damage gain per level decreased from 3.3 to 3.2
  • M.A.D.Mana Pool as Regen rescaled from 0.08% + 0.02% per level to 0.1% + 0.01% per level
  • Reactive TazerExplosion Radius decreased from 450 to 400

Apr 7, 2026

Techies in 7.41b

  • TalentsLevel 10 Talent Magic Resistance decreased from +20% to +15%
  • TalentsLevel 15 Talent Blast Off! Damage decreased from +200 to +175

Mar 27, 2026

Techies in 7.41a

  • TalentsLevel 10 Talent Proximity Mines Cooldown Reduction decreased from 3s to 2s
  • Proximity MinesDamage decreased from 450/575/750 to 400/550/700
  • Proximity MinesPortion of damage dealt on the edge of AoE decreased from 60% to 50%
  • Proximity MinesMinimum Damage decreased from 240/345/450 to 200/225/350

Mar 24, 2026

Techies in 7.41

  • TalentsLevel 15 Talent +3 Mana Regen replaced with +25% Reactive Tazer Buff and Disarm Duration
  • TalentsLevel 25 Talent Damage increased from +252 to +253
  • M.A.D.New innate ability. Passive
  • M.A.D.Increases mana regen by a portion of Techies' max mana equal to 0.08% + 0.02% per level
  • M.A.D.When Techies die, they leave behind a barrel that explodes after 1.5s, dealing magical damage equal to 50 + 30% of their max mana to enemies in a 400 area of effect. The barrel provides 400 obstructed vision until it explodes
  • M.A.D.Upgraded with Aghanim's Shard
  • M.A.D.Increases mana to damage by 10%. Adds an active component. Techies plant the M.A.D. barrel, and detonate it later by using a sub-ability. The M.A.D. barrel is invisible and can be destroyed before the detonation process begins. Detonating the barrel makes it visible and immortal, and then it explodes after the same 1.5s delay. Only one M.A.D. can exist via the active cast at one time. Barrel Health: 200. Cast Range: 450. No Mana Cost. Cooldown: 30s. Cast Point: 1s
  • Reactive TazerCan now always be cast on allies
  • Reactive TazerCast Range increased from 500 to 600
  • Reactive TazerNo longer upgraded with Aghanim's Shard
  • Blast Off!Now deals its self damage before damaging enemies
  • Blast Off!Techies are now rooted and disarmed instead of self-stunned during Blast Off's leap animation
  • Proximity MinesDamage source changed from Proximity Mines to the caster
  • Minefield SignNow only available with Aghanim's Scepter

Dec 15, 2025

Techies in 7.40

  • Base Agility increased from 14 to 16
  • Damage at level 1 increased by 1 (from 46–48 to 47–49)
  • TalentsLevel 20 Talent +125 Sticky Bomb Latch/Explosion Radius replaced with +160 Sticky Bomb Damage

Oct 2, 2025

Techies in 7.39e

  • Reactive TazerCooldown decreased from 30/25/20/15s to 26/22/18/14s
  • Proximity MinesMin damage at the edge increased from 50% to 60%

Jun 24, 2025

Techies in 7.39c

  • Reactive TazerExplosion Radius increased from 400 to 450

May 29, 2025

Techies in 7.39b

  • Sticky BombDamage increased from 80/160/240/320 to 95/170/245/320

Feb 18, 2025

Techies in 7.38

  • Spoon's StashTechies stack all previously selected Enchantments onto newly crafted Neutral Items
  • Spoon's StashAlso allows to have two Tier 5 Enchantments by recrafting a tier 5 item
  • Spoon's Stash · ContextFurther re-crafts will replace only the second Tier 5 Enchantment. The first one can't be replaced. It is possible to have two similar Enchantments at the same time
  • Base Damage increased by 17
  • Damage at level 1 increased by 3 (from 43-45 to 46-48)
  • Strength gain increased from 2.5 to 2.6
  • Agility gain increased from 1.3 to 1.8
  • Intelligence gain decreased from 3.0 to 2.8
  • Damage gain per level decreased from +4.8 to +3.2
  • Damage at level 30 decreased by 52 (from 210-212 to 158-160)
  • Minefield SignCast Point decreased from 1.5s to 1.25s
  • Minefield SignNow also causes Sticky Bombs and Proximity Mines within the radius to deal 15% more damage

Oct 1, 2024

Techies in 7.37d

  • Proximity MinesBase Charge Restore Time decreased from 19/17/15s to 15s

Jul 31, 2024

Techies in 7.37

  • Squee's ScopeEach point of attack speed now also grants 1 attack projectile speed

Jun 6, 2024

Techies in 7.36b

  • Base Attack Range increased by 50
  • Minefield SignCast Point decreased from 2.0s to 1.5s

May 22, 2024

Techies in 7.36

  • Innate Ability · Minefield SignRemains as an Innate ability. Active, can't be leveled up
  • Squee's ScopeTechies gains 1 attack range for each point of attack speed
  • Spleen's Secret Sauce · Blast Off!Damage and Self-Damage is increased by 15% of Techies' Max Health
  • Spoon's StashTechies can use and benefit from backpack items as if they were in their inventory
  • Base Attack Range decreased from 700 to 550

Mar 21, 2024

Techies in 7.35d

  • Sticky BombCooldown increased from 13/11/9/7s to 16/13/10/7s

Dec 21, 2023

Techies in 7.35b

  • Sticky BombStick Radius increased from 250 to 300
  • Sticky BombExplosion Radius increased from 300 to 350

Dec 14, 2023

Techies in 7.35

  • Blast Off!Current HP Self Damage decreased from 35/30/25/20% to 20%

Oct 4, 2023

Techies in 7.34d

  • Blast Off!Cooldown rescaled from 39/36/33/30s to 40/35/30/25s
  • Proximity MinesAll flying hero units can now trigger the mines

Aug 14, 2023

Techies in 7.34b

  • Blast Off!Stun Duration increased from 0.8/0.95/1.1/1.25s to 0.8/1.0/1.2/1.4s

Aug 8, 2023

Techies in 7.34

  • Reactive TazerCan now be detonated via Detonate Tazer sub-ability at any time during its effect to end it with an AoE explosion
  • Reactive TazerThe sub-ability replaces Reactive Tazer for the duration of the buff but is unavailable for the first 0.5s to prevent accidental detonation. Cooldown starts upon cast
  • Reactive TazerCooldown rescaled from 28/24/20/16s to 30/25/20/15s

Jul 12, 2023

Techies in 7.33e

  • Base Armor decreased by 1
  • Base Damage decreased by 3
  • Sticky BombCooldown increased from 12/10/8/6s to 13/11/9/7s

Jun 15, 2023

Techies in 7.33d

  • Base Attack Speed decreased from 100 to 90
  • Sticky BombDamage decreased from 90/180/270/360 to 80/160/240/320
  • Blast Off!Stun Duration decreased from 0.8/1/1.2/1.4s to 0.8/0.95/1.1/1.25s

May 13, 2023

Techies in 7.33c

  • Base Damage decreased by 6 (Level 1 damage unchanged)

Apr 20, 2023

Techies in 7.33

  • Now is a Universal Hero
  • Base Damage decreased from 21-23 to 12-14
  • Damage on level 1 unchanged (46-48)
  • Damage gain per level increased from +3 to +4.08
  • Reactive TazerAghanim's Scepter Upgrade moved to Aghanim's Shard (effect is unchanged)
  • Blast Off!Aghanim's Shard Upgrade removed
  • Blast Off!No longer silences enemies
  • Blast Off!Now stuns enemies for 0.8/1/1.2/1.4s
  • Proximity MinesMagic Resistance Reduction debuff now stacks independently
  • Minefield SignCast Time increased from 1s to 2s
  • Minefield SignNow upgradable by Aghanim's Scepter
  • Minefield SignIncreases effect radius to 1000 and duration to 4 minutes. When an enemy hero gets within 200 units of the sign, the entire 1000 radius area becomes a minefield for 10 seconds. Enemy units will take 300 damage for every 200 units moved. Minefield area is visible to enemies once activated. The sign is destroyed after the minefield expires. Only one sign can exist at a time

Sep 27, 2022

Techies in 7.32c

  • Reactive TazerBonus Movement Speed increased from 15/20/25/30% to 18/22/26/30%

Aug 23, 2022

Techies in 7.32

  • Sticky BombSlow duration increased from 2.5s to 3s
  • Reactive TazerNow applies a Basic Dispel to the attacking enemy
  • Reactive TazerScepter now also deals damage to any enemy that attacks the affected ally
  • Minefield SignCooldown decreased from 360s to 60s
  • Minefield SignDuration decreased from 180s to 60s
  • Minefield SignCast Time increased from 0s to 1s
  • Minefield SignNow causes mines within 500 radius to be invulnerable

Jun 8, 2022

Techies in 7.31d

  • Proximity Mine gold bounty reduced from 25 to 15
  • Proximity Mine Magic Resistance Reduction increased from 10/15/20% to 15/20/25%
  • Sticky BombDetonation slow duration increased from 2s to 2.5s

Feb 28, 2022

Techies in 7.31b

  • TalentsLevel 20 talent +100 Sticky Bomb Damage replaced with +125 Sticky Bomb Latch/Explosion Radius
  • Blast Off!Now deals self damage based on Techies' current HP, rather than max HP
  • Blast Off!Self damage decreased from 50/45/40/35% to 35/30/25/20%
  • Blast Off!Enemy damage decreased from 275/350/425/500 to 200/300/400/500
  • Blast Off!Cooldown decreased from 45/40/35/30 to 39/36/33/30
  • Sticky BombExplosion now slows enemies within the explosion radius by 15/25/35/45% for 2 seconds
  • Reactive TazerDisarm duration rescaled from 3 to 2.4/2.7/3.0/3.3s

Feb 23, 2022

Techies in 7.31

  • Stasis Trap Removed
  • Remote Mines Removed
  • Base movement speed reduced from 320 to 300
  • Base damage increased by 12
  • Base armor reduced by 2
  • Base attack speed increased from 90 to 100
  • TalentsLevel 15 Talent +300 Blast Off damage reduced to +200
  • TalentsLevel 20 Talent +40 movement speed replaced with +100 Sticky Bomb damage
  • TalentsLevel 20 Talent -22s Blast Off! cooldown reduced to -15s
  • TalentsLevel 25 Talent +60ms Proximity Mines replaced with -0.8s Proximity Mine activation delay
  • Sticky BombNew basic ability. Lobs a Sticky Bomb up to 1000 range towards the target 250 AoE area. If it falls next to an enemy hero it will stick to them, slowing their movement speed by 25/35/45/55%. The bomb will explode after 3 seconds dealing 90/180/270/360 damage in an 300 units area around it. Mana cost: 100/115/130/145. Cooldown: 12/10/8/6
  • Reactive TazerNew basic ability. Techies trigger an electric charge giving him 15/20/25/30% bonus movement speed for 6s. Enemies attacking Techies will be disarmed for 3 seconds. At the end of its duration, it will disarm all enemies within 400 radius. Mana cost: 60. Cooldown: 28/24/20/16s
  • Reactive TazerReworked Scepter. Reactive Tazer can be cast on allies within 500 range and deals 300 damage in its final detonation
  • Proximity MinesNow Techies' ultimate ability
  • Proximity MinesMana Cost rescaled from 110/130/150/170 to 110/140/170
  • Proximity MinesCharge restore time decreased from 23 to 19/17/15
  • Proximity MinesMinimum distance between mines reduced from 400 to 350
  • Proximity MinesDetonation delay decreased from 1.6s to 1s
  • Proximity MinesActivation delay decreased from 1.75s to 1s
  • Proximity MinesDetonation Radius increased from 400 to 500
  • Proximity MinesCast range increased from 100 to 400
  • Proximity MinesDamage rescaled from 200/380/560/740 to 400/575/750
  • Proximity MinesMines deal full damage to targets within 150 radius and decreasing damage down to 50% to enemies on the edge
  • Proximity MinesMines only detonate if there's a damageable target within range. (Magic immune enemies will reveal them and can't attack them but they won't detonate on their own)
  • Proximity MinesMines now apply a 5s debuff reducing the magic resistance of all enemies in its radius by 10/15/20%. (Multiple mines refresh the debuff)
  • Blast Off!Cooldown rescaled from 35s to 45/40/35/30s
  • Blast Off!Self damage reduced from 50% to 50/45/40/35%
  • Blast Off!Damage reduced from 300/400/500/600 to 275/350/425/500
  • Blast Off!Can no longer be cast while leashed
  • Blast Off!No longer deals lethal damage to Techies

Aug 17, 2021

Techies in 7.30

  • Proximity MinesDamage reduced from 200/400/600/800 to 200/380/560/740
  • Proximity MinesBuilding Damage Percentage increased from 25% to 30%

Apr 16, 2021

Techies in 7.29b

  • Base attack speed reduced from 100 to 90
  • TalentsLevel 15 Talent reduced from +4 Mana Regen to +3
  • Blast Off!Suicide death no longer grants you TP scroll (this is a general change for self kill)

Apr 9, 2021

Techies in 7.29

  • Movement speed increased from 310 to 320
  • Remote Mines cast time improved from 1 to 0.75
  • TalentsLevel 15 Talent increased from +240 Blast Off! Damage to +300
  • TalentsLevel 15 Talent reduced from +5 Mana Regen to +4
  • Minefield SignCan no longer be placed in fountain areas
  • Blast Off!Shard cast range reduced from +600 to +300
  • Blast Off!Shard stun radius increased from 200 to 400 (same as damage radius)
  • Blast Off!Shard stun duration increased from 1.5 to 1.75

Mar 17, 2020

Techies in 7.25

  • TalentsLevel 25 Talent increased from +25 Mines Movement Speed to +75

Jan 26, 2020

Techies in 7.24

  • Blast Off self damage changed from Pure to Magical
  • TalentsLevel 20 Talent changed from +150 Gold/Min to -28s Blast Off Cooldown

Dec 14, 2019

Techies in 7.23e

  • XP Talent is now replaced with +25% Magic Resistance

Nov 29, 2019

Techies in 7.23b

  • Scepter bonus range from 400 to 300
  • Proximity MinesReplenish time increased from 15 to 23

Jan 29, 2019

Techies in 7.21

  • Remote Mines manacost reduced from 200/240/300 to 120/180/240

Nov 19, 2018

Techies in 7.20

  • Base movement speed increased from 270 to 315
  • Base intelligence increased by 2

Source: Valve’s public Dota 2 data feeds. Notes belong to Valve. Dates use Bellevue time (Pacific).