Honkai: Star Rail items

Efficiency Optimization Chip

Efficiency Optimization Chip is a 4-star item in Honkai: Star Rail.

Type

Expansion Chip

Effect

After entering combat, reduces the Energy required for Ultimate by 1. Energy can be reduced by up to 2 points max.

• 3... 2... 1... Action!
• 60% New Thermal Mining Pickaxe
• Ability Point
• A Bottle of Draconic Tears
• A Bottle of Glass Marbles
• A Bouquet of First Snow
• About Death
• About Happiness
• About Life
• About Love
• About Money
• Above the Firmament