Warding Guide
Master vision control with Observer and Sentry wards in Dota 2
Understanding Ward Types
Observer Ward
6 minutes
Duration: 6 minutes
Restock Time: 7 minutes
Vision Range: 1400 units
Stock: 2 charges (max 4)
Cost: Free
Observer wards provide vision of an area for your team. They are essential for map awareness, detecting enemy movements, and securing objectives.
Sentry Ward
8 minutes
Duration: 8 minutes
Restock Time: 85 seconds
True Sight Range: 1000 units
Stock: 1 charge (max 10)
Cost: 75 gold
Sentry wards provide true sight, revealing enemy Observer wards and invisible units. Essential for dewarding and countering invisibility.
Key Ward Mechanics
- Vision Range: Observer wards provide 1400 range vision, which covers a large area. High ground placement maximizes effectiveness.
- True Sight: Sentry wards detect invisible units and enemy wards within 1000 range but don't provide regular vision.
- Stock System: Observer wards restock slowly (7 minutes), so use them wisely. Sentry wards restock faster (85 seconds) for frequent dewarding.
- Team Limit: Each team can have a maximum of 15 Observer wards and 15 Sentry wards on the map simultaneously.
- Vision Sharing: All vision is shared with your entire team, making warding a team investment.
Ward Placement Timing
Pre-Rune Wards
Place initial Observer wards before the horn to secure vision for the 2-minute power rune spawns. Cover rune spots and common rotation paths.
Best Spots:
- Near top and bottom rune locations
- Enemy jungle entrances
- High ground overlooking mid lane
Early Game Warding
Focus on lane vision and protecting your cores from ganks. Use Sentry wards to deward enemy vision in your jungle.
Priorities:
- Protect your carry's farm with defensive wards
- Ward enemy jungle for aggressive plays
- Deward common support ward spots
Mid Game Vision
Establish vision around key objectives like Roshan pit, Tormentor locations, and contested jungle areas. Vision wins teamfights.
Key Areas:
- Roshan pit entrances (especially after 20 min)
- Enemy jungle to track rotations
- High ground approaches before pushes
Late Game Control
Aggressive warding in enemy territory for pick-offs and defensive wards to protect base. Every ward can swing the game.
Critical Vision:
- Deep enemy jungle for pick-off opportunities
- Multiple Roshan pit angles
- Shrine and outpost areas
- High ground defense vision
Common Ward Spots by Game Phase
Early Game Ward Spots (0:00-10:00)
Top Rune Hill
High ground near top rune provides vision of rune spawn, enemy jungle entrance, and rotating supports. Essential starting ward.
Bottom Rune Area
Mirror position for bottom rune. Critical for safe lane or carry position to see incoming ganks from enemy supports.
Jungle Entrances
Wards at jungle choke points detect enemy invades and rotations. Place near commonly farmed camps to spot ganks early.
Lane Deward Spots
Use Sentry wards in your lane or jungle to remove enemy vision. Common spots include lane bushes and high ground near runes.
Mid Game Ward Spots (10:00-25:00)
Roshan Pit Vision
Multiple spots provide vision into Roshan pit. Essential from 15 minutes onward. Cover at least two entrances to the pit area.
Enemy Jungle Depth
Deep aggressive wards in enemy jungle reveal farming patterns and enable pick-offs. Place near ancients or major camps.
High Ground Approaches
Before pushing towers, ward the high ground to see enemy defensive positions and avoid walking into disables.
Roshan Deward
Before attempting Roshan, use Sentry wards to clear enemy vision around the pit. Check all common ward cliffs.
Late Game Ward Spots (25:00+)
Deep Enemy Territory
Extremely aggressive wards near enemy base reveal farming cores and enable smoke ganks. High risk, high reward placement.
Multiple Roshan Angles
Late game Roshan is game-deciding. Maintain vision from at least 3 different angles to prevent enemy from taking it unseen.
Outpost Control
Outposts provide XP and map control. Ward nearby to control these key strategic points and track enemy movements.
Base Defense Dewards
When defending high ground, clear enemy siege wards with Sentry wards. Protect your high ground vision advantage.
Dewarding Strategies
Dewarding is the art of removing enemy Observer wards using Sentry wards. Effective dewarding denies enemy vision and provides your team with a strategic advantage.
Common Enemy Ward Locations
- Rune Spots: High ground cliffs near top and bottom rune spawns are the most common ward locations in the game.
- Jungle Entrances: Choke points between lanes and jungle are frequently warded to detect rotations.
- High Ground: Any elevated terrain provides superior vision range, making these spots popular for warding.
- Roshan Pit: Cliffs overlooking Roshan pit are critical ward spots, especially in mid-late game.
- Lane Bushes: Trees and elevated areas in lanes provide vision of creep waves and ganks.
1. Think Like a Support
Ask yourself: "Where would I place a ward here?" Common support thought processes lead to predictable ward placements. Ward in these spots first.
2. Time Your Dewards
Observer wards last 6 minutes. If you saw an enemy place a ward, wait 5-6 minutes for it to expire naturally instead of spending gold on Sentries.
3. Check High Ground First
High ground positions provide maximum vision range. When dewarding an area, place Sentries on high ground to cover the most common ward spots.
4. Deny Enemy Information
Deward before attempting Roshan, smoke ganks, or strategic movements. Removing enemy vision is as valuable as having your own.
5. Use Vision to Deward
If you have an Observer ward that reveals enemy wards, use it to guide your Sentry placement. Don't blindly spam Sentries without information.
6. Carry Detection on Cores
Mid and carry players should occasionally buy Sentries to deward their farming areas. Don't rely solely on supports for all dewarding.
Optimal Sentry Placement
Each Sentry ward costs 75 gold and has 1000 range true sight. To maximize efficiency:
- Place Sentries to cover 2-3 potential enemy ward spots simultaneously
- Combine Sentries with Observer wards to deward while maintaining your own vision
- In late game, always deward before major objectives like Roshan or high ground pushes
- Track enemy support movements - if they enter an area alone, they're likely warding
Vision Control for Roshan and Objectives
Roshan Vision Control
Roshan is the most contested objective in Dota 2, and vision control around the pit determines which team can take it safely.
Essential Roshan Ward Spots
- Dire Cliff: The classic ward spot providing full vision into the pit from Dire side
- Radiant High Ground: Multiple spots on Radiant side overlook the pit entrances
- River Ward: Central river vision detects teams moving toward Roshan from mid lane
- Jungle Approaches: Ward the jungle paths leading to Roshan from both sides
Pre-Roshan Vision Setup (8-minute mark)
When Roshan is approaching respawn (8-11 min window after death):
- Establish vision around the pit area at least 1 minute before the 8-minute mark
- Deward all enemy vision using Sentry wards before attempting Roshan
- Place multiple Observer wards from different angles to prevent enemy surprise
- Maintain vision of enemy movements through their jungle to detect rotations
- Use Scan to confirm the area is clear before starting Roshan
Objective-Based Warding
Tower Pushes
Before pushing towers, establish vision:
- High ground behind the tower to see defenders
- Flanking jungle paths to prevent surprise initiations
- Enemy base approaches to track teleport rotations
High Ground Siege
High ground advantage is huge in Dota 2:
- Ward on enemy high ground despite risk to remove vision disadvantage
- Deward enemy defensive wards before pushing uphill
- Use multiple ward angles to prevent enemy from avoiding your vision
Tormentor Control
Tormentors spawn at 20:00 game time:
- Ward near Tormentor locations around 19:00 to prepare
- Vision enables your team to contest or secure free Aghanim's Shards
- Deward enemy vision to take Tormentors undetected
Smoke Gank Preparation
Before executing smoke ganks:
- Clear vision in your smoke path to avoid early detection
- Ward enemy jungle to spot isolated targets
- Deward common defensive wards that would reveal your smoke
Advanced Warding Tips
High Ground Priority
Always prioritize high ground ward placement. Elevated terrain provides superior vision range and is harder for enemies to deward without committing resources.
Vision Synergy
Place wards that complement each other. Overlapping vision creates information networks that reveal enemy movement patterns and rotation timings.
Aggressive vs Defensive
When ahead, place aggressive wards in enemy territory. When behind, use defensive wards to protect your farming cores and detect enemy smokes.
Fog of War Advantage
Ward in fog of war when possible. If enemies don't see you warding, they can't deward effectively. Use smokes or positioning to ward unseen.
Carry Detection Items
As a support, always carry Sentry wards mid-late game. The ability to instantly deward or reveal invisible heroes can win teamfights.
Track Enemy Wards
Mentally track when enemies placed wards. After 6 minutes, those spots are clear for your own wards. Time your dewarding around ward expiration.
Use Scan Efficiently
Scan recharges every 4.5 minutes. Use it to check Roshan, detect enemy wards before dewarding, or confirm gank safety. Don't waste it on low-value checks.
Ward Stock Management
Don't hoard Observer wards. Use them consistently throughout the game. Wards sitting in your inventory provide zero value to your team.
Night vs Day Vision
Place wards during day when you have better vision to do so safely. Most heroes have reduced vision range at night, making warding more dangerous.
Communicate Ward Placement
Ping when you place wards so your team knows where vision exists. Also ping when wards are about to expire so someone can replace them.
Bait with Fake Wards
Occasionally fake placing a ward by walking into fog and returning. Enemies may waste Sentries checking spots where you didn't actually ward.
Cliff Warding Technique
Use cliff positions that are difficult for enemies to reach. They'll need flying vision or specific heroes to deward these spots, making them highly valuable.
Track Ward Timings with Our Timer Tool
Never miss a ward restock or forget when your wards expire. Our DotaSense tool helps you track Observer ward restocks every 7 minutes and Sentry ward restocks every 85 seconds.
Frequently Asked Questions
How often do Observer wards restock?
Observer wards restock every 7 minutes. You start with 2 charges and can store up to a maximum of 4 charges. This means if you use wards efficiently, you'll get new wards at 7:00, 14:00, 21:00, etc. Use them consistently rather than hoarding them.
How long do Sentry wards last?
Sentry wards last for 8 minutes and provide true sight in a 1000 unit radius. They restock every 85 seconds (1 minute 25 seconds) and cost 75 gold each. You can store up to 10 Sentry wards in stock.
What is the vision range of Observer wards?
Observer wards provide 1400 range vision in all directions. This large vision radius is why high ground placement is so effective - it can cover multiple jungle paths, rune spots, and rotation routes simultaneously.
Where should I place my first wards?
For the first wards (before 0:00), place them near the top and bottom power rune spawn locations on high ground. These spots provide vision for the 2-minute rune spawns, detect enemy support rotations, and help your mid laner control runes safely. Alternatively, place one defensive ward in your jungle if you're worried about early invades.
How do I know where to deward?
Think about where you would place wards in that area - high ground positions, rune spots, and jungle entrances are most common. If you saw an enemy support enter an area alone and leave, they likely placed a ward there. Use Sentry wards on high ground to cover multiple potential ward locations at once. Also consider the game state: if enemies are frequently ganking a specific lane, they probably have vision there.
Should I buy wards as a core player?
Yes, occasionally! While supports should handle most warding, core players should buy Observer wards if they're all out of stock and the map is dark. More importantly, mid and carry players should buy Sentry wards to deward their farming areas, especially in mid game. The 75 gold investment to secure safe farm is worth it compared to dying to a gank.
Can Sentry wards see invisible heroes?
Yes! Sentry wards provide true sight, which reveals invisible units within 1000 range. This includes heroes with invisibility abilities (Riki, Bounty Hunter, Clinkz), Shadow Blade users, and enemy Observer wards. However, Sentry wards themselves don't provide regular vision, so you need team vision or your own hero vision to attack revealed invisible enemies.
What is the best ward spot for Roshan?
There isn't one single "best" spot - you need multiple wards to cover Roshan effectively. The Dire cliff overlooking the pit is classic, but also ward the Radiant high ground, river approaches, and jungle paths leading to Roshan. In late game, use at least 3 different ward angles to ensure you detect any enemy Roshan attempts. Always deward the area with Sentries before your own Roshan attempt.