Press the Attack is a new rune during this preseason's rune changes. It's effect causes enemies to take 12% more damage from all sources if you basic attack them 3 times.
Some champions have abilities that enhance their auto attack damage. For example, Vayne's passive does extra true damage if she attacks the same target three times. Ezreal's Q applies on-hit effects, so it's (kind of) a skill shot basic attack. Nasus' Q does more damage the more stacks he has. Etc. etc.
Does the extra damage from these "enhancements" get amplified by 12% on the third attack, or does that boost only start after Press the Attack has been triggered (fourth attack and onward)?
Best Answer
As of patch 7.24 all bonuses apply on and after the 4th hit
So I just tested this in the practice tool and the 12% bonus damage are applied on the 3rd hit for both the initial attack and the bonus effect.
The 12% damage taken increase will be applied before the damage.
For testing I used Siphoning strike (about 1.4k stacks) and Sheen on Nasus and I've also tested Kayle's E. Other attacks and effects should behave the same way.