Location and Access

Urahara (Kisuke Urahara from Bleach) serves as the evolution gatekeeper. Located to the left of the dungeon exit in the main lobby, his positioning signals Evolution as a "Step 2" process—engaged after summoning and leveling units.

Prerequisites for Evolution

• Ownership: Base unit must be in inventory (not equipped)
• Level Threshold: Unit meets specific level requirement (varies by rarity)
• Material Possession: Exact quantity of all required materials held
• No Partial Fulfillment: System allows viewing but not evolution with incomplete materials

The "Big Blue Evolve Button"

The evolution interface features the irreversible "Big Blue Evolve Button." Once clicked, materials are permanently consumed with no refund mechanism. This finality necessitates meticulous planning—accidentally evolving wrong units or consuming rare materials is a common catastrophic error.

Shiny vs. Standard Evolution

Shiny units (distinct visual aura, higher base stats) share evolution paths with standard counterparts but require higher economic investment. Shiny status transfers to evolved forms, maintaining visual distinction and stat bonuses throughout the evolution process.

Gold Merchant Strategy

The Gold Merchant (adjacent to Summon area) serves as the primary engine for converting playtime into evolution progress:

• Daily Inventory: Stocks generic fragments and evolution items
• Trait Rerolls: Sells 5 daily rerolls (critical for optimization)
• "Buy All" Heuristic: Purchase all fragments as hedging strategy
• Renewable Resource: Gold generates passively via AFK systems

Ruby Valuation System

Ruby values represent opportunity cost and rarity hierarchy. Items valued at 600 Rubies are significantly rarer than 5-Ruby items, informing farming priorities:

Challenge Rotation Loop

Non-purchasable materials come from the Half-Hourly Challenge system:

• Rotation: Challenge maps and rewards change every 30 minutes
• Elemental Ties: Burning Fragments (Fire map), Ocean Fragments (Marine Base)
• Rainbow Bottleneck: Universal Fragments appear in high-difficulty challenges
• Strategic Timing: Log in during specific windows for target materials

Materials in UTD follow a distinct taxonomy based on rarity, usage, and acquisition vectors:

Anime Artifacts: Lore-Specific Materials

These items tie directly to anime origins and represent grind-heavy requirements:

• Black Slime (Eminence in Shadow): 30 units × 600 Rubies = 18,000 Ruby value
• Cursed Fingers (Jujutsu Kaisen): 180 units × 300 Rubies = 54,000 Ruby value
• Edgy Phrases (Eminence in Shadow): 800 units × 5 Rubies = 4,000 Ruby value (filler)
• Senzu Beans (Dragon Ball): Required for Gukoo evolution

The "Rainbow" Class: Universal Fragments

Universal Fragments (Rainbow Star Fruit) serve as "Joker" cards in the material deck:

• Usage: Craft cores (Genos) or direct Secret unit requirements
• Acquisition: Virtual Realm high waves, Nightmare challenges
• Rarity: Most coveted drop, represents evolution "gold standard"
• Strategic Value: Never sell or waste on non-essential evolutions

Mastering Evolution requires leveraging both resource loops simultaneously for maximum efficiency:

The Hedging Strategy

Advanced players employ a "hedging" approach: purchase all available fragments from Gold Merchant daily, even if current evolution targets don't require them. This creates a resource buffer for future unit releases and prevents missed opportunities when specific materials become available.

Opportunity Cost Analysis