Universal Tower Defense X Boundless Units
A rarity hub for Boundless units, showing role mix, high-tier units, recommended traits, and unit guides.
Checked May 8, 2026, 08:00 AM
3Boundless units
3S++ / S+ units
1Roles
BoundlessRarity
Rarity planning note
Boundless is a filter, not an investment rule. Spend only after role, tier rating, and trait fit are clear.
Role mix
Boundless units
Open a unit for trait, relic, and evolution details.
Boundless Units FAQ
Quick answers about this rarity group.
How many Boundless units are listed?
This rarity hub lists 3 Boundless units.
Are all Boundless units worth investing in?
No. Rarity alone is not enough. Check role, tier rating, and recommended trait before spending resources.
Which Boundless units have high tier ratings?
The Strongest in History, The Strongest of Today, Jinoo, Shadow Monarch are rated S++ or S+ on the Update 2.75 tier list.