It is said that for every fear and phobia that afflicts Man and Beast alike, there is a daemon waiting to be born. Arachna — chittering, skulking, crooked and wicked — spawns from the fear of spiders. Protected by a chitinous exoskeleton as strong as cold iron, she stalks, and traps, and slaughters her enemies.
description taken from heroesofnewerth.com
Stats

Attack Type=Ranged
Attack Damage=40-51
Attack Range=600

Movementspeed=300
Turnrate=320
Armor=2.08
MagicArmor=5.5

Strength=17
Agility=22
Intelligence=15

Strength per level=1.9
Agility per level=3.2
Intelligence per level=1.5

Skills for Arachna

Spells

Webbed Shot

Arachna imbues her attack with webbing, slowing enemies on impact.

Level 1 : 10% Movement slow -5% attack speed, maximum of 4 charges, 2 second cooldown
Level 2 : 20% Movement slow -10% attack speed, maximum of 4 charges, 2 second cooldown
Level 3 : 30% Movement slow -15% attack speed, maximum of 4 charges
Level 4 : 40% Movement slow -20% attack speed, maximum of 4 charges
Mana cost 12
Cooldown n/a

Harden Carapace

Arachna hardens her carapace for a short duration,
increasing her resistance to magical attacks.

Level 1 : Dispels debuffs on self, and applies +5 Magic armor for 3 seconds
Level 2 : Dispels debuffs on self, and applies +10 Magic armor for 4 seconds
Level 3 : Dispels debuffs on self, and applies +18 Magic armor for 5 seconds
Level 4 : Dispels debuffs on self, and applies +35 Magic armor for 6 seconds
Mana cost 90
Cooldown 22/20/18/16 seconds

Precision

Arachna’s renown at being a precise shot inspires nearby
ranged units, increasing their base damage.
Also increases Arachna’s base damage.

Level 1 : +7% Base Damage Aura
Level 2 : +14% Base Damage Aura
Level 3 : +21% Base Damage Aura
Level 4 : +28% Base Damage Aura
Mana cost n/a
Cooldown n/a

Ultimate Skill for arachnia

Spider Sting

Hurls a Spiderling toward a target enemy unit
that can reveal stealthed enemies. Upon reaching its destination,
the Spiderling viciously attacks the enemy unit, poisoning it,
slowing its movement and attack speed.
Level 1 : Spiderling deals 75 damage per attack, lasts for 5 attacks.
Level 2 : Spiderling deals 150 damage per attack, lasts for 5 attacks.
Level 3 : Spiderling deals 225 damage per attack , lasts for 5 attacks.
Mana Cost 125/175/250
Cooldown 80/50/30
Spiderling destroyed after being attacked 3 times or after having dealt 5 attacks.
Spiderling Passive
+5 Armor
Magic immune
Splash immune
Reveals stealthed heroes 600 range

Item for Arachna

The item build for Arachna will be updated right here, as of now it is still being formulate,d if you have played DOTA, Arachna has Similarities with Drow ranger and a little bit of broodmother. From that, you get what items you need to form for arachna.

Strategy and guide for Arachna

Strategy and guide for Arachna will be updated right here.