A good stat screen tells you where a unit is strong and where it is being held back. The official Ztrifecta badge confirms that rolling Triple Z stats in one spin is possible, but it does not publish the odds or prove that every unit needs perfect grades.
Stat priority by role
How Stat Reroll works
Open Stat Potential, choose Stat Reroll, then select a unit. One reroll changes Damage, SPA and Range together. A Stat Lock protects one selected result for the next roll; each locked stat consumes one Stat Lock per reroll. Because lower SPA means faster attacks, a negative SPA percentage is beneficial.
Z through A- chances and value ranges
B+ through F chances and value ranges
These are the published release ranges for an individual stat result. They do not make Triple Z a 0.15% event: rolling all three Z grades together is far rarer because three results must align. The game achievement confirms Triple Z exists, not its combined probability.
Best lock strategy
- Lock a top Damage roll on a main carry before chasing SPA.
- For effect units that trigger on attacks, a strong negative SPA roll may matter more than Range.
- Do not lock a mediocre third stat just because it is positive; every protected slot consumes another Lock on the next roll.
- Stop at a build that clears the target mode. Perfect grades are an endgame resource sink.
Transfer Stats without destroying the wrong unit
In the transfer screen, the left unit is sacrificed and the right unit receives the selected stats. Choose which results to transfer and confirm the Gold cost. The sacrificed unit loses its Trait, Stat Potential and level progress as part of the reset shown by the current interface. Lock valuable units and re-read both sides before confirming.
Measure real performance
- Compare the same unit level, evolution, trait, and equipment.
- Use the same map, wave, target type, and upgrade count.
- Track clear time, leaks, boss time, and total placement cost.
- Separate tooltip damage from support value and effect uptime.
Stats questions
What does Triple Z mean?
The achievement wording confirms three Z-grade stats rolled together. The live stat panel should define which three values were rolled.
Is perfect Potential required?
No. Clear consistency and a complete team matter more than a trophy roll on one unfinished unit.