Quick answers
Who counters Olaf in Wild Rift?
In the matchup data documented in Rift Lab, these are the harder matchups for Olaf: Rammus (Jungle), Kindred (Jungle), Janna (Support), Lulu (Support), Lee Sin (Jungle). This is a documented matchup list, not a win rate: TheNexus does not publish win-rate or pick-rate figures it cannot source.
How do you play against Olaf in Wild Rift?
Riot's ability text for Olaf describes a dash, leap or blink in Reckless Swing (ability 3); healing or regeneration in Vicious Strikes (ability 2). Plan around those abilities before a trade or a fight. These notes are keyword matches over the ability text only, not a rating of how strong Olaf is, so read the full descriptions on this page.
What is the best build for Olaf in Wild Rift?
The Nexus-reviewed core build for Olaf, in purchase order: Trinity Force then Zeke's Convergence then Death's Dance then Plated Steelcaps. Runes: Conqueror, Triumph, Last Stand, Legend: Alacrity, Nimbus Cloak. This is a reviewed snapshot (patch 7.2b), not a build ranked by win rate.
Which lane and role does Olaf play in Wild Rift?
Olaf is a Fighter by Riot's classification and is played in Jungle. Riot rates the difficulty Medium. On our tier-list snapshot (patch 7.2b) it shows A tier from its external source, which is a snapshot letter and not a TheNexus win rate.
Every answer here is built from Rift Lab data and Riot's own ability text. Where the data is missing we say so instead of guessing.