Edith: Best build, Counters

Overload

After each skill cast, Edith and Phylax become Overloaded for 3s, during which all Basic Attacks will trigger chain lightning, dealing (+20% Total Magic Power) (+ 3 (+0.2*Hero Level)% target's HP) extra Magic Damage to up to 4 enemies.
Chain lightning damage against minions is increased to 150%.

Earth Shatter

CD: 8.5

After a 0.75s delay, Edith controls Phylax to launch an earth-shattering blow in a designated direction, dealing 225 (+10% Max HP) Physical Damage to enemies hit (deals 120% damage to minions) and knocking them airborne for 0.8s.
This skill can only be interrupted by Suppression.

Onward

CD: 10

Edith controls Phylax to charge in the target direction, dealing 90 (+3% Max HP) Physical Damage to enemies along the way.
If Phylax hits an enemy hero during the charge, it will stop immediately and throw them over its shoulder, dealing 108 (+5% Max HP) Physical Damage.

Primal Wrath

CD: 40

Passive: When inside Phylax, Edith accumulates Wrath by dealing skill damage to enemies and taking damage (calculated before damage reduction).
Active: Edith ejects herself forward from Phylax, knocking back nearby enemies and taking flight for up to 8s (gaining 30 Movement Speed). During this time, she gains new skills and can perform ranged Basic Attacks, each dealing 35 (+75% Total Physical Attack) (+25% Total Magic Power) Magic Damage. She also gains 350 (+5% Max HP) - 350 (+20% Max HP) extra shield, 50% - 150% extra Attack Speed, and 5% - 20% Hybrid Lifesteal based on accumulated Wrath, and converts each point of Extra Physical Defense and Extra Magic Defense into 3.5 Magic Power.