Abilities
Olaf gains Attack Speed and Life Steal based on his missing Health.
Olaf throws an axe that slows and shreds armor; picking it up resets the cooldown.
Olaf gains a shield and increased attack speed for a few seconds.
Olaf swings recklessly, dealing true damage to himself and his target, refunding the health cost if the target dies.
Olaf becomes immune to disables while attacking, and passively gains bonus armor and magic resist.
Guide
Olaf thrives as a relentless diver in ARAM, using his ultimate to ignore CC and his sustain to stay in fights. Focus on poking with Q, then all-in with W and E when you see an opening.
Tips
Use your Undertow (Q) to poke and slow enemies from a safe distance in ARAM's narrow lane.
Activate Vicious Strikes (W) before engaging to maximize lifesteal and attack speed during fights.
Pop Reckless Swing (E) early in fights to chunk low-health enemies, but be mindful of its self-damage.
Save your ultimate, Ragnarok (R), to cleanse crowd control and dive the enemy backline without fear.
Build tanky items like Spirit Visage and Dead Man's Plate to survive longer and sustain through fights.
Combos
Q > W > auto-attack > E: Slow with Undertow, activate Vicious Strikes, then spam autos and finish with Reckless Swing.
R > Q > W > E: Pop Ragnarok to ignore CC, throw Undertow to slow, then W and E for burst damage.
Flash > Q > E: Flash onto a low-health target, slow with Q, and execute with Reckless Swing.