Talk:Sky Harbinger/@comment-107.209.115.101-20151008235322

The formula for attack based off of health simplifies to (2.5 * [remaining health percentage] - 50) % increase for attack.

So at 20% hp remaining its gives 0% attack increase, at 50% hp it gives 75% attack increase etc. (This doesn't include the sphere's base 30% boost to attack.)

For anyone whose reality collapses when they equip it to Quaid, don't worry, His ES and Sky harbinger's attack adjustment based off HP work out to simply be:  (remaining HP percentage + 100) % boost to attack.