System Guide

Evolution

Evolution is the system that turns duplicate management, souls, and long-term roster planning into real account power.

Verified Last verified March 8, 2026

What evolution costs

What evolution costs

Evolution is never only about the duplicate. You also need the right soul economy, the right rarity, and enough spare currency to finish the upgrade instead of stalling halfway.

  • Duplicates of the exact same unit
  • Souls of the matching rarity
  • Enough yen to pay the system cost

When to invest

When to invest

Do not rush evolution on every interesting pull. Start once the unit is clearly a keeper and your roster no longer needs every duplicate for basic progression flexibility.