Weapon evolves by earning points. Any match won using Phantom Assassin will earn you 1 point. Earning 40 points will upgrade the weapon to Level 2, and earning 100 points causes the weapon to reach its maximum evolution.
Hero
Phantom Assassin
Slot
Weapon
Rarity
Arcana

Inscribed Lamb to the Slaughter
Sea Rake's Bridle
Taunt: Chicken!
Auspicious Announcer: Storm Spirit
Crux of Perplex
Taunt: Raging Bull
Auspicious Speed Demon 