Fiora identifies the weak spots - or vitals - in the defenses of all enemy champions she comes close to. If she manages to attack her enemy's weak spot, Fiora deals 2.5% (+4.5% per 100 bonus attack damage) of the target's maximum Health as bonus true damage for that attack while gaining 40-115 (at levels 1-18) Health and 20 (+10 × Grand Challenge's rank)% movement speed which decays over 1.75 seconds. Fiora reveals a new weak spot whenever she attacks one, or if 15 seconds pass without it being attacked.