Frosted targets are distinct from Slowed targets - only Ashe's Frost Shot can trigger the bonus damage. Other slows can't trigger it.
Here are examples on the behaviour of Frost Shot's bonus damage:Simply add the following to the base 110% AD for the total damage.
Infinity Edge will add 30% AD bonus damage - 20 × (1 + 0.5), for a total of 140% AD.
Adding a Phantom Dancer increases the aforementioned to 75% AD bonus damage - 50 × (1 + 0.5)%, for a total of 185% AD.
With 100% critical strike chance and Infinity Edge's bonus critical damage, you will deal 160% AD bonus damage 10% + 100 × (1 + 0.5)%, for a total of 260% AD.
Probable Bug: Critical strike damage from runes is stacking multiplicatively with Infinity Edge's bonus critical strike damage, rather than additively, for a maximum of 228.265% AD bonus damage (10 + (100 × (1 + 0.5) × (1 + 0.4551)), for a total of 328.265% AD instead of 205.51% AD (for a total of 305.51% AD damage) (10 + (100 × (1 + 0.9551).
Statikk Shiv will deal 110 + (Critical Chance × (1 + Bonus Critical Damage)) bonus magic damage if triggered against a frosted target, but will only deal 100 if triggered on a non-frosted target.
COST: 50 Mana + 5 Focus
Passive: While Ranger's Focus is inactive, Ashe's basic attacks each grant her Focus for 4 seconds, stacking up to 5 times.
Passive:Ashe stores a charge of Hawkshot periodically, up to a maximum of 2 stored at once.
Active:Ashe sends a hawk spirit toward the target location, granting sight of its path for 2 seconds and in a large radius at its destination for 5 seconds. The hawk's sight is not obstructed by brush or terrain.
Active:Ashe fires a missile of ice in the target direction. The arrow shatters upon hitting an enemy champion, stunning the champion, and dealing magic damage and slowing nearby enemies for 1-3.5 seconds, based on the distance the arrow traveled.