"Rylai Crestfall - Crystal Maiden"

Crystal Nova (V)
Blasts enemy units around a target point with a wave of damaging frost that slows movement speed and attack rate.
Level 1 - 100 damage and slows for 3.5 seconds.
Level 2 - 150 damage and slows for 4 seconds.
Level 3 - 200 damage and slows for 4.5 seconds.
Level 4 - 250 damage and slows for 5 seconds.
• Damage type: magical
• Will slow the affected units' movespeed by 30% and attack speed by 20%.
• Casting range: 700
• Area of Effect: 400
Mana Cost: 100/120/140/160
Cooldown: 15 seconds

Frostbite (E)
Freezes the target in a case of ice, prohibiting movement and attacking. Deals 70 damage per second.
Level 1 - Disables the target and deals 70 damage per second, lasts 1.5 seconds.
Level 2 - Disables the target and deals 70 damage per second, lasts 2 seconds.
Level 3 - Disables the target and deals 70 damage per second, lasts 2.5 seconds.
Level 4 - Disables the target and deals 70 damage per second, lasts 3 seconds.
• Damage type: magical
• Blink- and Metarmophosis-based skills cannot be used while under the effect of Frostbite.
• Lasts 10 seconds on creeps level 5 or lower.
• Casting range: 500
Mana Cost: 115/125/140/150
Cooldown: 10

Brilliance Aura (R)
Gives additional mana regeneration to all friendly units on the entire map.
Level 1 - Adds 0.5 mana regeneration.
Level 2 - Adds 1 mana regeneration.
Level 3 - Adds 1.5 mana regeneration.
Level 4 - Adds 2 mana regeneration.
• Stacks with the Brilliance Aura given by Ring of Basillus.
• The bonus mana regeneration is not considered for percentage mana regeneration increases.
Mana Cost: N/A
Cooldown: N/A

Freezing Field (F)
Causes many random icy explosions in an area surrounding Rylai. Enemy units in the Freezing Field are slowed. Lasts for 4 seconds.
Level 1 - Each explosion deals 105 (170*) damage.
Level 2 - Each explosion deals 170 (250*) damage.
Level 3 - Each explosion deals 250 (310*) damage.
Mana Cost: 200/400/ 600
Cooldown: 150/120/90 seconds
• Area of Effect: 635** / 190***
• (**) Total area of effect of the spell.
• (***) Area of effect of each explosion.
• Damage type: magical
• The slow is applied on all enemy units within an AoE of 635, even if they aren't hit by any explosion (lasts 1 second).
• Every 0.1 seconds one explosion is made, for a total of 40 explosions.
• Aghanim's Scepter improves explosion damage.