How to enhance Diamond-grade equipment
Diamond-grade weapon features
1. Can reduce the defense of Neo Progmear-type enemies.
2. When attacking Neo Progmear-type enemies, sets the chance of attack failure to 0.

※ Neo Progmear-type enemies have a special defensive ability; attacks may miss when using Emerald-grade or lower weapons.
※ When using Diamond-grade weapons against Neo Progmear-type monsters, attack power is adjusted upward.

Differences vs the previous enhancement method Difference 1: Enhancement can be done with a single Diamond Before: The number of gems required varies by enhancement level. Diamond-grade: Any stage enhancement is possible with one Diamond. Difference 2: 15 enhancement stages You can enhance up to 15 stages. Difference 3: Penalty on failure +1 to +3 On success: increases by 1 stage. On failure: stays at the current stage. +4 and above On success: increases by 1 stage. On failure: decreases by 1 stage. Difference 4: Success rate changes Enhancement from +0 is 100% successful. All other stages are 50% success rate. Difference 5: Stat correction changes by enhancement For each enhancement stage, attack power or defense is bonus-corrected by 10%.

Notes: Since success/failure is probability-based, failing once does not guarantee the next attempt will succeed.

For staves, a 10% bonus correction is applied to match the previous enhancement percentages.
+10 is the same percentage correction as the old +5.

How to enhance Regent Diamond-grade equipment
Regent Diamond-grade weapon features

By attaching a Salamander Magic Stone, you can reduce enemy evasion in Genius Laboratory.

How to upgrade Regent-grade items
Damage increase on grade-up: 11%
Maximum grade-up: 15

Effects by stage:
+1 to +3: None
+4 to +10: Red
+11 to +14: Yellow
+15: Light blue

Success rate by stage:
+1 to +3
Does not fail.

+4 to +15
50% success rate; on failure, only the gem is consumed.

Notes: Since success/failure is probability-based, failing once does not guarantee the next attempt will succeed.