Last updated: July 2026
Universal Tower Defense Z Unit Rarities Explained
Universal Tower Defense Z unit rarity tiers for July 2026. Common through Boundless, pull rates, and investment rules.
Rarity Tiers
Universal Tower Defense Z units span multiple rarity bands, each with different base stats, evolution caps, and summon rates. Lower rarities feed evolution fodder; highest tiers (Secret, Universal, Boundless) define endgame meta. Banner rate-ups display percentages in the summon UI—always check before spending Universal Gems.
Festival banners temporarily boost Merciless God and Blanco Beast rates. Standard banners rotate anime collab units including Gojo, King Sailor, and Joyful Captain depending on the week.
Investment by Rarity
Do not invest trait rerolls in Common or Rare units—save for Epic and above. Legendary and above deserve Ruler Tickets. Boundless units require massive fragment investment but return S-tier performance when fully evolved with Sacred minimum trait.
Virtual Idol remains S-tier regardless of slight rarity nuances—pull her even if banner rates look unfavorable.
Fodder Management
Keep duplicate low-rarities for evolution fuel. Use inventory filters to lock meta units before bulk selling. Event fragments from codes (Holy, Phantom, Universal) bypass fodder requirements for specific evolution lines—prioritize codes like WeLoveBerserker! for direct materials.
Frequently Asked Questions
Rarest rarity?
Boundless and Universal Secret tiers—extremely low pull rates.
Can low rarity beat S-tier?
Rarely—even with Ruler, kit limitations cap low rarities.
Pity across rarities?
Banner pity typically counts all pulls—verify in-game banner text.
Fodder from summons?
Yes—most pulls include duplicate commons for evolution fuel.
Event exclusive rarity?
Some festival units only appear on event banners—Merciless God example.