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

Genuine Serrakura
Auspicious Speed Demon
Taunt: Order Up!
Golden Piscean Pulverizer
Masque of Awaleb
Inscribed Augury's Guardian
Genuine Wyvern Hatchling
Whisky the Stout Artifact 