Leyssa's basic attacks freezes the enemies slowing their movements, applying a debuff for 2 seconds that can stack up to 5 times. Each stack slows the target's movement speed by 6% and attack speed by 3%. The debuff will be refreshed after every attack.
Max Movement Speed Slow: 30%
Max Attack Speed Slow: 15%
COST: 20 / 30 / 40 / 50 / 60 mana
COOLDOWN: 8 / 7 / 6 / 5 / 4
Active: Strikes target enemy, applying on-hit effects and a bonus stack of her innate to the first target and dealing 75% of the ability's damage to every enemy unit it passes through. This ability can critically hit only on the target to deal bonus damage.
Frost Lance can critically strike on the targeted enemy, adding half of Leyssa's critical damage modifier to Frost Lance's AD ratio.
COST: 60 mana
COOLDOWN: 18 / 16 / 14 / 12 / 10
Active: Leyssa gains increased movement speed and ignores unit collision for 5 seconds. Leyssa also gains armor and magic resist for the duration. Additionally, she leaves an ice trail where she walks that lasts for 2.5 seconds. Enemies who walk on it will get one stack of Leyssa's passive every second. Innate stacks gained this way will still not go over 5.
Movement Speed: 10 / 15 / 20 / 25 / 30%
Armor & Magic Resist: 8 / 16 / 24 / 32 / 40
Passive: Attacking a target with Crystallize stacks on it will give Leyssa bonus attack speed for 3 seconds. Attacking the same target again before the buff ends will only refresh the buff's duration.
Attack Speed per Stack: 8 / 10 / 12 / 14 / 16
Max Attack Speed: 40 / 50 / 60 / 70 / 80%
Leyssa gains flat armor penetration.
Armor Penetration: 5 / 10 / 15 / 20 / 25
COST: 100 mana
COOLDOWN: 75 / 60 / 45
Active: Leyssa coats her blade in white ice, causing her next basic attack or Frost Lance within 10 seconds on champions to freeze the target, applying one bonus stack of her innate, dealing bonus magic damage and stunning it. This attack can be used on towers to disable them from attacking for 2.5 seconds.