Olaf

Olaf Ragnarok (R) cleanses on cast and ignores Cyclone (R) knock-up, so he walks out of the AOE swinging at full damage while Wukong only hard CC is on cooldown. Berserker Rage passive attack speed below half HP and Reckless Swing (E) true damage chunk Wukong fast.

Olaf Ragnarok (R) strips the stun from Cyclone (R) and grants CC immunity, so the spin still displaces him but nothing else lands. Berserker Rage ramps his attack speed the lower he gets, and Reckless Swing (E) true damage chunks Wukong regardless of armor.

Ragnarok (R) cleanses Public Execution (R) suppression on activation, neutralizing Ambessa's main pickoff tool. Reckless Swing (E) true damage point-and-click ignores her armor buys, and Undertow (Q) slow catches dash combos at range.

Amumu spends his ultimate to hold a team still, but Olaf is the one champion in the fight it cannot hold — Ragnarok clears the stun as it lands and keeps him immune for the rest of the swing chain.

Ragnarok (R) cleanses the Head Rush (Q) stun and the wall stun off Chilling Scream (E), but not the knockback itself, so E still buys distance. Reckless Swing (E) is true damage, so armour does nothing — Sundered Sky's health and Crimson Curse's healing still keep you alive.

Ragnarok (R) cleanses your stuns, and the immunity holds while he keeps swinging; Moonfall (R) still drags him in, which is exactly where he wants to be. Reckless Swing (E) true damage shreds her HP once Pale Cascade (W) shield breaks, and Undertow (Q) slow stops her dash chain.

Ragnarok (R) makes Olaf immune to your Cocoon (E) stun, which is your only setup. Reckless Swing (E) is true damage, so your Magic Resist does nothing against it, and Undertow (Q) slows Elise during the Rappel (E) landing animation.

Ragnarok (R) CC immunity ignores the lockdown of Cataclysm (R) — Olaf walks out of the arena hitting Jarvan for full damage with Undertow (Q) axe slow while his only initiation is on cooldown. Reckless Swing (E) true damage shreds resistances.

Kayle is one of the weakest champions at level 6, and Celestial Blessing does not cover the burst Berserker Rage puts out at low HP. Olaf kills her with Reckless Swing early, before Divine Ascent turns her basic attacks ranged and the lane stops being reachable.

Ragnarok (R) makes Olaf immune to Ring of Frost (W) root and Frozen Tomb (R) stun for as long as he keeps attacking. Reckless Swing (E) true damage ignores her resistances and Undertow (Q) slow closes the gap her Glacial Path (E) tries to create.

Ragnarok cleanses Malphite's Unstoppable Force knock-up the moment he lands, removing the only engage tool his team's win condition depends on. Olaf walks through Ground Slam slow and Seismic Shard slow with R immunity.

Nasus's first 6 levels are passive farming — Olaf Q-pokes him off the wave with Undertow slow chip, E-bursts him at sub-40% HP under Berserker Rage, and snowballs Stridebreaker before Siphoning Strike stacks reach the kill threshold.

Olaf's Ragnarok grants full crowd-control immunity for 3 seconds on a 100/90/80 second cooldown, which means Unspeakable Horror's fear cannot proc and Nocturne's all-in burst window dies on contact.

Ragnarok cleanses Rammus's Frenzying Taunt the moment it lands, breaking the chain into Soaring Slam knock-up. Undertow strips armor, the exact stat Defensive Ball Curl reflects, and Olaf walks through Powerball slow with R immunity to land Reckless Swing true damage.

Olaf's Ragnarok R cleanses Burrow knock-up and grants unstoppable status, so Void Rush untargetable does not save Rek'Sai from his Undertow axe spam or Reckless Swing true-damage burst.

Ragnarok cleanses Sejuani's Glacial Prison stun the moment it lands and ignores Permafrost detonation that follows. Olaf walks straight through her CC chain to the back line, and her team has just spent its only engage ultimate on a target it cannot hold.

Reckless Swing (E) deals true damage that ignores the armor and magic resist that Scalemail passive stacks. Ragnarok (R) plus Tough It Out (W) attack speed plus Berserker Rage passive let him out-DPS Shyvana inside her own R Dragon Form sustain window.

Ragnarok (R) cleanses and blocks CC, so Mega Adhesive (W) stops mattering once he presses it, and Fling (E) still moves him but no longer disables him. Undertow (Q) slows and shreds armor; the axe pickup cuts up to 2.5s off its cooldown, outpacing his Slipstream retreat.

Ragnarok cleanses Sion's Decimating Smash knock-up at the moment of impact, denying him the lock his engage needs. The Roar of the Slayer slow is ignored under the same immunity, so Sion cannot peel Olaf off the target he chose.

Ragnarok (R) makes Olaf immune to disables for the duration, so Impale (R) suppression simply does not stick. Reckless Swing (E) deals true damage that ignores Skarner's tank stats, and Undertow (Q) axe pickup gives perma move-speed chase through Threads of Vibration.

Olaf's Ragnarok R cleanses and blocks disables, so your blind still lands (blinds and slows are not removed by it), but he keeps walking at you through the CC you do not have. Undertow Q slow catches Move Quick W kite, and Reckless Swing E applies true damage that bypasses MR.

Ragnarok R makes Olaf immune to disables, so Disdain E no longer stuns him; the Q slow still lands and holds him in the Purge cone, since Ragnarok does not remove slows. Berserker Rage scales attack speed and lifesteal with missing health; Reckless Swing E deals true damage too.

Ragnarok (R) cleanses Warwick Infinite Duress (R) suppress mid-leap and grants tenacity that breaks Jaws of the Beast (Q) heal pattern. Berserker Rage passive stacks attack speed below half HP and Reckless Swing (E) true damage chunks Warwick through tank stats.

Ragnarok R makes Olaf immune to crowd control, so Stretching Strikes Q pull, E knockup and R bounces all fizzle on him. Undertow Q axe throw plus Reckless Swing E true damage shred Zac's HP pool, and Berserker Rage passive boosts attack speed at low HP.