Dragon Knight stats, abilities and strategy
Transforms into a formidable ranged dragon
When he takes on his terrifying dragon form, Dragon Knight strikes fear into any who face him. Strong and adaptable, he can stun his enemies and burn all in front of him, often providing his allies the momentum they need to carry them to victory.
Win Rate 49.4%
Pick Rate 6.3%
Attributes
582 +79.2/lvl
291 +20.4/lvl
21 +3.6/lvl
16 +2.0/lvl
18 +1.7/lvl
Stats
Damage:
55 - 61 + 3.6/level (173 - 179 at level 30)
Range:
150
Armor:
2.7 + 0.3/level (14.7 at level 30)
Movement:
315
Roles
Carry
Durable
Nuker
Pusher
Support
Escape
Disabler
Initiator
Facets
Fire Dragon
Win Rate: 48.0%
Pick Rate: 27.1%
Dragon Knight deals additional Magic Damage with his attacks. Dragon Knight's abilities have increased Area of Effect that get stronger when in Elder Dragon Form.
Corrosive Dragon
Win Rate: 49.7%
Pick Rate: 30.1%
Dragon Knight has Corrosive Powers on his attacks that get stronger when in Elder Dragon Form. All of his abilities deal Physical damage.
Frost Dragon
Win Rate: 50.1%
Pick Rate: 42.8%
Dragon Knight has Slow and Health Restoration Reduction Effects on his attacks that get stronger when in Elder Dragon Form.
Patch 7.39
- Wyrm's Wrath: Instead of reducing Healing, Health Regen, Lifesteal, and Spell Lifesteal by 14/21/28/35%, now reduces Health Restoration by 14/21/28/35%
Abilities
ABILITY: Passive
PASSIVE: Breakable
The life blood of the Dragon improves Dragon Knight's health regeneration and armor. Amount for both values is increased by 0.5 per level and is multiplied when in Dragon Form.
HEALTH REGEN: 2
ARMOR: 2
DRAGON FORM MULTIPLIER: 1.5
LEVEL 25 TALENT: +12 Dragon Blood HP Regen/Armor
Breathe Fire
AFFECTS: Unit
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
DISPELLABLE: Yes
DEBUFF: Yes
Unleashes a breath of fire in front of Dragon Knight that burns enemies and reduces the damage their attacks deal.
Hits units up to 900 away.
Does not trigger spell block or spell reflect.
DAMAGE: 80 / 160 / 240 / 320
DAMAGE REDUCTION: 30%
REDUCTION DURATION: 11
14 / 13 / 12 / 11
90 / 95 / 100 / 105
600
FACET: Corrosive Dragon
Damage type changed to Physical.
LEVEL 20 TALENT: +85% Breathe Fire Damage/Cast Range in Dragon Form
LEVEL 10 TALENT: 30% Breathe Fire Damage Reduction
Knight Davion's breath has become that of the mighty Eldwurm Slyrak, remembered for burning numerous other knights to a crisp.
Dragon Tail
AFFECTS: Unit
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
DISPELLABLE: Strong Dispels Only
DEBUFF: Yes
Dragon Knight smites an enemy unit in melee range with his shield, stunning it and dealing damage. When in Elder Dragon Form, the cast range increases to 450.
STUN DURATION: 1.8 / 2 / 2.2 / 2.4
DAMAGE: 60 / 90 / 120 / 150
16 / 14 / 12 / 10
70 / 80 / 90 / 100
150
FACET: Fire Dragon
When in Dragon Form, Dragon Tail applies to enemies in a 100 radius.
FACET: Corrosive Dragon
Damage type changed to Physical.
LEVEL 15 TALENT: +0.4s Dragon Tail Stun
Davion's combination of dragon talents and knightly skills makes him a vicious opponent in melee combat.
Wyrm's Wrath
ABILITY: Passive
PASSIVE: Breakable
The life blood of the Dragon improves Dragon Knight's attacks. When in Dragon form, these effects are stronger.
FACET: Fire Dragon
Attacks deal additional magic damage to enemy units. Spells and items have increased AoE.
FACET: Corrosive Dragon
Attacks are filled with lethal poison that affects enemy units and structures, reducing armor and dealing physical damage over time.
FACET: Frost Dragon
Attacks are filled with frost that affects enemy units, slowing movement speed, attack speed, and reducing health restoration.
Slyrak's blood still courses through Davion's veins, giving him twice the vitality of an ordinary knight.
Elder Dragon Form
DAMAGE TYPE: Physical
PASSIVE: No
Dragon Knight takes the form of one of three powerful elder dragons. Increases movement speed, attack damage, and Wyrm's Wrath effects. Attacks apply Wyrm's Wrath on-hit effects and a percentage of the attack damage to all enemies near the target. Increases Dragon Tail range. Increases health regeneration and armor bonuses from Dragon Blood.
Cooldowns of items that are different for ranged and melee units will be based on which form Dragon Knight was in when the item was used.
DURATION: 60
BONUS MOVE SPEED: 20
BONUS ATTACK RANGE: 350 / 350 / 350 / 350
BONUS ATTACK DAMAGE: 20 / 60 / 100 / 140
EFFECT SPLASH RADIUS: 275
ATTACK DAMAGE SPLASH: 30% / 40% / 50% / 60%
WYRM'S WRATH BONUS: 20% / 30% / 40% / 50%
100
50
Aghanim's Scepter
Increases the level of Dragon Form by adding a Level 4 Black Dragon, that provides free pathing, increases damage, and increases effectiveness of the Wyrm's Wrath attacks.
LEVEL 25 TALENT: +50% Wyrm's Wrath effect during Elder Dragon Form
LEVEL 20 TALENT: +150 Elder Dragon Form Attack Range
The dormant dragon power springs forth from within Davion, combining the powers of a legendary knight with a legendary Eldwurm.
Fireball
Shard grants new ability
AFFECTS: Area
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
Ignites an area, dealing damage over time that lingers on enemies in it. Has reduced cast range when melee.
RADIUS: 275
DAMAGE PER SECOND: 75
DURATION: 8
LINGER DURATION: 2
DRAGON FORM CAST RANGE: 1400
MELEE CAST RANGE: 600
20
80
FACET: Corrosive Dragon
Damage type changed to Physical.
Most Dragon Knights name no greater horror than the scourge of dragon's fire.
Talents
+50% Wyrm's Wrath effect during Elder Dragon Form
+12 Dragon Blood HP Regen/Armor
+ 2.8%
+85% Breathe Fire Damage/Cast Range in Dragon Form
+150 Elder Dragon Form Attack Range
+ 1.0%
+300 Health
+0.4s Dragon Tail Stun
+ 0.7%
30% Breathe Fire Damage Reduction
+15 Damage
+ 2.4%
Win Rate
Pick Rate
Strategy
Dragon Knight trades well in lane with his Corrosive dragon facet as it does damage per second and reduces armor. Look to use that to pressure the enemy melee heroes.
Try to use Breathe Fire to secure creeps during the laning stage, especially the enemy ranged creep. Best to use it in line with the enemy hero when securing creeps to also reduce their right clicking damage
Use Dragon Tail often in lane against the enemy hero to mess with their last hitting ability, especially to contest for the ranged creep. It can be followed up with 1-2 right clicks and turned into a favorable trade for you.
Dragon Knight is great at taking buildings down early due to the Corrosive Breath facet amplified during dragon form with bonus right click damage added. Look to push towers when your ultimate is available.
Once you get 
Blink Dagger, try to make use of it immediately before the opponents see it in your inventory.
Make sure you have allies nearby when you initiate with blink early on. Dragon Knight doesn't do much burst damage until later on into the game.
Avoid fighting while Dragon Form is on cooldown. Push out lanes or play defensively.
Break effects and healing reductions are a big problem for Dragon Knight. Itemize against those.
Counter Strategy
Someone should buy 
Spirit Vessel against Dragon Knight to deal high damage and offset his regeneration.
Pressure Dragon Knight early on before he becomes higher level which makes him tankier with the Dragon Blood passive.
Elder Dragon Form is really good at destroying towers. Organize defense quickly.
Be aware of Dragon Knight's
Blink Dagger or 
Shadow Blade timing.
Linken's Sphere, status resistance and 
Lotus Orb are good against Dragon Tail.
Break effects remove Dragon Blood - the passive that makes Dragon Knight tanky.