The Dota 2 development team has unveiled patch 7.38c, which includes changes to game mechanics as well as item and hero balancing. Let's take a closer look at the key innovations.

General Updates

Dire Safe Lane Jungle

• The Dire Safe Lane Tier 1 tower has been moved forward, away from the Dire base and closer to where the creeps initially meet.
• The Top Lane creep paths have been slightly adjusted so the creeps meet closer to the Dire tower.
• The tree lines above and below the tower have been reworked.
• The Dire Safe Lane hard camp has been moved away from the Dire Safe Lane Tier 1 tower, and had its tree line reduced and rotated to face the river.
• The cliff above the Dire Safe Lane small camp has been extended slightly towards the Dire Safe Lane Tier 1 tower, and the small camp has been moved and had its tree line adjusted.
• The ramp leading to the river and the Roshan Pit from the Dire Safe Lane pull area has been moved towards the Pit slightly.
• Several additional tree and visual adjustments have been made to this area.

Top Roshan Pit

• Fixed a spot at the north side of the pit that had incorrect vision rules.
• Fixed some areas that visually looked pathable but were not.

Bottom Lane

• Trees have been added around the Dire Bottom Tier 1 tower, and several tree positions adjusted.
• A tree near the Radiant Safe Lane hard camp has been removed.
• The Watcher above the secret shop has been repositioned between the ramps from Dire Mid Tier 1 and the bottom Roshan Pit.
• Fixed unnecessary pathing blockers at the left of the entrance to the Dire Base through the team only gate.
• Several trees have been removed from the Radiant high ground leading to the Bottom Roshan Pit.
• Several additional tree and visual adjustments have been made to this area.

Item Updates

Desolator

• Damage bonus increased from +50 to +55.

Helm of the Dominator

• Dominated creep is now considered a creep-hero.

Helm of the Overlord

• Dominated creep is now considered a creep-hero.

Mage Slayer

• Mage Slayer damage per second decreased from 25 to 20.

Orb of Corrosion

• Corrosion armor reduction decreased from 3 to 2.

Revenant's Brooch

• Spell Lifesteal bonus decreased from +16% to +14%.

Spirit Vessel

• Soul Release healing, regen and lifesteal reduction increased from 60% to 70%.

Neutral Item Updates

Artifact changes

Mana Draught

• Bottoms Up cooldown increased from 40s to 60s.

Orb of Destruction

• Impeding Corruption Slow (Melee) decreased from 10% to 8%.
• Impeding Corruption Slow (Range) decreased from 5% to 4%.

Pollywog Charm

• Ribbit mana cost decreased from 40 to 0.

Ripper's Lash

• Flay Bonus Damage (Heroes) increased from 12 to 16.

Searing Signet

• Burn Through duration increased from 5s to 6s.
• Burn Through total damage decreased from 75 to 72.
• Burn Through damage is now classified as Health Removal.

Nemesis Curse

• Glass Cannon self damage amp decreased from 8% to 6%.

Crippling Crossbow

• Hobble mana cost decreased from 75 to 50.

Mind Breaker

• Silence Strike cooldown increased from 12s to 16s.

Pirate Hat

• Plunder steal radius increased from 1200 to 2400.

Unrelenting Eye

• Relentless enemy search radius increased from 300 to 600.

Enchantment changes

Alert

• Attack Speed bonus increased from +10/15/20/25 to +10/17/24/35.

Mystical

• Mana Regen bonus decreased from +1/2/3/4 to +1/1.75/2.5/3.25.

Tough

• Damage bonus increased from +5/8/11/14 to +7/10/13/17.

Keen-eyed

• Max Mana reduction decreased from 15% to 10%.

Vast

• Attack Range bonus increased from +60/90 to +75/110.

Crude

• Intelligence reduction decreased from 15% to 8%.

Timeless

• Spell Amplification bonus decreased from +10/20% to +8/16%.

Titanic

• Base Attack Damage bonus decreased from +15/25% to +10/20%.

Feverish

• Mana Cost/Mana Loss Increase decreased from +10% to +7%.

Wise

• Experience per Minute bonus increased from +600 to +1000.

Hero Updates

Abaddon

• Base Armor decreased by 1.

Facets

Mephitic Shroud

• Aphotic Shield — Cooldown increased from 14/12/10/8s to 15/13/11/9s.

Abilities

Curse of Avernus

• No longer deals damage to buildings.

Talents

• Level 15 Talent Curse of Avernus DPS decreased from +50 to +40.
• Level 25 Talent Curse of Avernus Attack Speed Bonus decreased from +80 to +65.

Alchemist

Abilities

Corrosive Weaponry

• Unstable Concoction stack count per second of brew time now rounds up to the nearest second (minimum 1 stack).

Ancient Apparition

Abilities

Ice Vortex

• Mana Cost increased from 40/50/60/70 to 40/55/70/85.

Chilling Touch

• Attack Range Bonus decreased from 80/120/160/200 to 60/90/120/150.

Batrider

Abilities

Firefly

• Radius increased from 200 to 250.

Flaming Lasso

• Forced movement from certain abilities no longer cancels lasso.
• Dark Willow's Terrorize.
• Death Prophet's Spirit Siphon (Fear from Aghanim's Shard).
• Keeper of the Light's Will-o-Wisp.
• Lich's Sinister Gaze.
• Lone Druid's (and Spirit Bear's) Savage Roar.
• Muerta's Dead Shot.
• Pudge's Dismember.
• Ringmaster's Wheel of Wonder.
• Shadow Fiend's Requiem of Souls.
• Terrorblade's Terror Wave.
• Tinker's Defense Matrix (blink with Translocator facet).
• Tinker's Warp Flare (still applies damage, but does not move the target).
• Tusk's Walrus Kick (still applies damage, but does not move the target).
• The following abilities continue to break the lasso: Centaur Warrunner's Hitch a Ride, Chaos Knight's Reality Rift, Disruptor's Glimpse, Kunkka's X Marks the Spot, Magnus' Reverse Polarity, Mars' Arena of Blood (created by an ally) and Vengeful Spirit's Nether Swap.

Talents

• Level 20 Talent 2 Flamebreak Charges replaced with -6s Flamebreak Cooldown.
• Level 20 Talent Smoldering Resin Duration increased from +2s to +4s.
• Level 25 Talent Sticky Napalm Damage increased from +15 to +20.

Brewmaster

Abilities

Primal Split

• Earth Brewling's Debuff Immunity magic resistance increased from 50% to 80%.
• Void Brewling's Astral Pull Damage increased from 50/100/150 to 75/150/225.
• Void Brewling's Astral Pull Distance increased from 300/500/700 to 450/575/700

Chen

Abilities

Summon Convert

• Convert is now considered a creep-hero.

Dark Seer

• Base Damage decreased by 2.
• Damage at level 1 decreased from 54–60 to 52–58.

Facets

Heart of Battle

• Radius increased from 900 to 1200.

Talents

• Level 10 Talent Wall of Replica Illusion Damage decreased from +20% to +15%.

Dazzle

Abilities

Shadow Wave

• No longer has increased healing and damage when bouncing on enemies with Aghanim's Scepter.

Nothl Projection

• Cast Range decreased from 600 to 450.
• Leash pull strength growth increased from 0.5 to 1.5.
• Max Duration decreased from 15s to 12s.

Talents

• Level 10 Talent Poison Touch Attack Range decreased from +300 to +200.
• Level 15 Talent +90 Attack Speed replaced with +5s Nothl Projection Duration.

Dragon Knight

Abilities

Elder Dragon Form

• Bonus Move Speed decreased from 20/25/30/35 to 20.

Earth Spirit

Abilities

Boulder Smash

• Damage rescaled from 120/180/240/300 to 110/180/250/320.

Talents

• Level 10 Talent Geomagnetic Grip Cooldown Reduction increased from 2s to 3s.
• Level 20 Talent Rolling Boulder Damage increased from +160 to +180.

Ember Spirit

Abilities

Sleight of Fist

• Bonus Hero Damage decreased from 40/80/120/160 to 25/70/115/160.

Enchantress

• Intelligence gain increased from 3.8 to 4.0.

Faceless Void

Facets

Time Zone

• Time Zone — Movement, Cast and Turn Speed manipulation decreased from 60% to 50%.
• No longer leashes enemies.

Hoodwink

Abilities

Acorn Shot

• Bonus Damage increased from 40/80/120/160 to 45/90/135/180.

Sharpshooter

• Max Damage increased from 550/900/1250 to 600/975/1350.

Hunter's Boomerang

• Movement Slow increased from 20% to 25%.
• Incoming Spell Damage Amp increased from 20% to 25%.

Jakiro

Facets

Ice Breaker

• Ice Path —  Secondary Damage decreased from 75/125/175/225 to 50/100/150/200.

Abilities

Dual Breath

• Mana Cost increased from 125/140/155/170 to 135/150/165/180.

Juggernaut

Abilities

Omnislash

• Slash Jump Radius is no longer increased by AoE bonuses.

Keeper of the Light

Abilities

Chakra Magic

• Self-cast bonus increased from 25% to 30%.

Kez

Talents

• Level 25 Talent Shodo Sai Mark Critical Strike increased from +75% to +100%.

Kunkka

Abilities

Tidebringer

• Damage Bonus increased from 30/60/90/120 to 35/70/105/140.

Legion Commander

Facets

Spoils of War

• Duel — Press the Attack duration on allies after duel win is now decreased by 50%.

Lifestealer

Facets

Fleshfeast

• Feast — Max HP per hero kill decreased from 20/25/30/35 to 15/20/25/30.

Abilities

Open Wounds

• Mana Cost increased from 75 to 100.

Lina

Abilities

Light Strike Array

• Mana Cost decreased from 100/115/130/145 to 100/110/120/130.

Luna

Abilities

Moon Glaives

• No longer bounce to attack-immune targets.

Lycan

• Base Strength increased from 26 to 28.
• Damage at level 1 increased from 50–55 to 52–57.

Magnus

• Base Strength decreased from 25 to 23.
• Damage at level 1 decreased from 55–63 to 54–62.

Abilities

Shockwave

• Damage decreased from 90/160/230/300 to 75/150/225/300.

Empower

• Self bonus decreased from 50% to 30%.

Marci

Facets

Buddy System

• Bodyguard — Now also increases duration from 6s to 7s.

Pick-me-up

• Rebound —Ally damage increased from 25% to 35%.

Medusa

Facets

Venomous Volley

• No longer slows cast speed.

Meepo

Facets

Codependent

• Divided We Stand — Armor bonus decreased from 2 to 1.

Muerta

Facets

Ofrenda

• Ofrenda — Attack Speed Bonus increased from 15/25/35/45 to 20/30/40/50.

Nature's Prophet

Facets

Ironwood Treant

• Nature's Call — Treant Health decreased from 800/1050/1300/1550 to 750/950/1150/1350.

Abilities

Spirit of the Forest

• Bonus damage per tree decreased from 4% to 3%.

Night Stalker

Abilities

Heart of Darkness

• Bonus health regen at night decreased from 40% to 20%.

Talents

• Level 15 Talent Hunter in the Night Status Resistance decreased from 30% to 20%.

Nyx Assassin

Abilities

Mind Flare

• Cooldown decreased from 13/11/9/7s to 11/9.5/8/6.5s.

Omniknight

Facets

Omnipresent

• Damage increase interval decreased from 0.3s to 0.25s.

Abilities

Purification

• Cooldown decreased from 18/16/14/12s to 15/14/13/12s.

Oracle

Abilities

Rain of Destiny

• Damage/Heal per second decreased from 35 to 30.

Talents

• Level 15 Talent -1s Purifying Flames Cooldown replaced with +25% Purifying Flames Enemy Damage.
• Level 20 Talent +30% Purifying Flames Enemy Damage replaced with -1s Purifying Flames Cooldown.

Phantom Assassin

Abilities

Phantom Strike

• Cast Range decreased from 1000 to 650/750/850/950.

Primal Beast

Facets

Provoke the Beast

• Uproar — Now also provides stacks upon being Silenced.

Abilities

Uproar

• Max Stacks increased from 5 to 6.

Ringmaster

Facets

Sideshow Secrets

• Crystal Ball — Now indicates the exact position of each enemy hero in the area without revealing their identity.

• Unicycle — No longer gets knocked off if the damage taken is below 20.
• No longer gets knocked off from any damage for 1.5s after mounting the unicycle.
• Can now cast non-channeling spells and pick up runes without dismounting the unicycle.

• Weighted Pie — Now also slows movement of the affected enemy by 45%. Similarly to vision, movement speed is recovering over the debuff time.

Silencer

Abilities

Brain Drain

• If Silencer is out of range, Intelligence will now be stolen only if the dying enemy is debuffed by Silencer the moment they die.

Skywrath Mage

Abilities

Arcane Bolt

• Mana Cost decreased from 85 to 70.

Snapfire

Abilities

Lil' Shredder

• Base Damage per shot increased from 20/35/50/65 to 25/40/55/70.

Mortimer Kisses

• No longer interrupted when Snapfire uses items/abilities that can be cast while channeling (Glimmer Cape, etc.).

Templar Assassin

Abilities

Refraction

• Cooldown decreased from 16s to 14s.
• Number of instances increased from 2/3/4/5 to 3/4/5/6.

Meld

• Fixed not applying to both attacks if Meld was used twice in quick succession.

Talents

• Level 25 Talent Refraction Instances increased from +3 to +4.

Terrorblade

Abilities

Conjure Image

• Illusion Damage Taken decreased from 275% to 250%.

Tidehunter

Facets

Krill Eater

• Starting attack range and Anchor Smash penalties increased from 50 to 60.

Abilities

Dead in the Water

• Cooldown increased from 25s to 35s.

Timbersaw

Abilities

Timber Chain

• Damage rescaled from 50/95/140/185 to 45/100/155/210.

Reactive Armor

• Bonus HP Regen increased from 0.3/0.4/0.5/0.6 to 0.4/0.5/0.6/0.7.

Tinker

Abilities

Laser

• Aghanim's Scepter size and health reductions decreased from 15% to 13%.

Defense Matrix

• Mana Cost increased from 80/95/110/125 to 90/105/120/135.

Talents

• Level 15 Talent Defense Matrix Damage Barrier decreased from +75 to +60.

Tiny

Facets

Crash Landing

• Toss — Movement Slow increased from 15/20/25/30% to 20/25/30/35%. 
• Attack Slow increased from 10/20/30/40 to 15/25/35/45.

Abilities

Grow

• Bonus Damage decreased from 60/120/180 to 55/110/165.
• Movement Speed Bonus rescaled from 10/20/30 to 15.

Warlock

Abilities

Eldritch Summoning

• Imp explosion delay increased from 0.2s to 0.3s.

Weaver

Abilities

The Swarm

• Bugs are now destroyed if the host unit becomes invulnerable.

Windranger

• Base Damage increased by 3.
• Damage on level 1 increased from 44–56 to 47–59.

Facets

Killshot

• Powershot — Execute no longer goes through any death denial effects (Dazzle's Shallow Grave, Oracle's False Promise, etc.).

Wraith King

Facets

Bone Guard

• Bone Guard — Cooldown decreased from 50s to 42s.
• Skeleton Duration increased from 40s to 46s.
• Level 10 Talent +25%/-25% Bone Guard Duration / Cooldown replaced with +2s Wraithfire Blast Slow Duration

Abilities

Wraithfire Blast

• Cooldown decreased from 17/14/11/8s to 14/12/10/8s.

Reincarnation

• Mana Cost increased from 200 to 225.