Quick answers
Who counters Vayne in Wild Rift?
In the matchup data documented in Rift Lab, these are the harder matchups for Vayne: Caitlyn (Dragon / ADC), Draven (Dragon / ADC), Ashe (Dragon / ADC), Malphite (Baron / Top), Vi (Jungle), Pantheon (Jungle), Nautilus (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 Vayne in Wild Rift?
Riot's ability text for Vayne describes crowd control (a stun, root, knock-up, pull or similar) in Condemn (ability 3); healing or regeneration in Silver Bolts (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 Vayne is, so read the full descriptions on this page.
What is the best build for Vayne in Wild Rift?
The Nexus-reviewed core build for Vayne, in purchase order: Blade of the Ruined King then Guinsoo's Rageblade then Magnetic Blaster then Berserker's Greaves. Runes: Lethal Tempo, Brutal, Cut Down, Legend: Bloodline, Bone Plating. Situational swaps: against enemy crowd control: Mercurial Scimitar. This is a reviewed snapshot (patch 7.2b), not a build ranked by win rate.
Which lane and role does Vayne play in Wild Rift?
Vayne is a Marksman and Assassin by Riot's classification and is played in Dragon / ADC. Riot rates the difficulty Medium. On our tier-list snapshot (patch 7.2b) it shows S 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.