Olaf's attack speed increases by 1% for every 1% of his missing health.
Undertow
Range: 1000
Cooldown: 8
Cost: 55 / 60 / 65 / 70 / 75 mana
Active: Olaf throws an axe in a line to a target point, dealing physical damage and slowing enemies it passes through. The slow decays over 2.5 seconds.
Missile Speed: 1600
The axe remains at the target location until Undertow is off cooldown. If Olaf picks up the axe, Undertow's cooldown is reduced by 4.5 seconds.
Active: Olaf attacks with such force that it deals true damage to his target and himself.
True damage: 100 / 160 / 220 / 280 / 340
Ragnarok
Cooldown: 100
Cost: 100 / 75 / 50 mana
Active: Olaf instantly removes all crowd control effects from himself. For the next 6 seconds, he is immune to disables (including silences and blinds) and has increased armor, magic resist and armor penetration.
3150 or 
790
.jpg)
.jpg#filelinks){kind=link}