Colorful gemstone recommendation: Chaotic Sky Flame Diamond 2 1 Critical Strike 3% Critical Strike Damage (requires 2 blue jacks), and Swift Sky Flame Diamond +42 attack strength, which slightly improves the movement speed (this is not as good as Chaos Diamond, but if you only insert rubies and topaz in pursuit of damage attributes, you can only use this).

Ruby recommendation: Broken Ruby 20 armor penetration level

Recommended for orange gemstones: Inscription Amethyst 10 Power 10 Critical Strike, Desolate Amethyst 20 Strong Attack 10 Acceleration.

Purple gemstone recommendation: Storm Fear Stone 10 Point Penetration Level 15 Endurance.

Frost system:

Colorful gemstone recommendation: Chaotic Sky Flame Diamond 2 1 Critical Strike 3% Critical Strike Damage (requires 2 blue jacks), Swift Sky Flame Diamond +42 attack strength, slightly improving movement speed (this is not as good as Chaos Diamond).

Recommended by Red Cave: Broken Red Jade +20 Strength

Huang Kong recommended: the inscription Amethyst 10 Power 10 Critical Strike; Etched amethyst 10 force 10 hit.

Blue hole recommendation: control fear stone 10 strength 15 endurance; Tears of Nightmare 10 Full Attribute

Evil department:

Colorful gemstone recommendation: Chaotic Sky Flame Diamond 2 1 Critical Strike 3% Critical Strike Damage (requires 2 blue jacks), Swift Sky Flame Diamond +42 attack strength, slightly improving movement speed (this is not as good as Chaos Diamond).

Recommended by Red Cave: Broken Red Jade +20 Strength

Huang Kong recommended: the inscription Amethyst 10 Power 10 Critical Strike; Etched amethyst 10 force 10 hit.

Blue hole recommendation: control fear stone 10 strength 15 endurance; Tears of Nightmare 10 Full Attribute