Build and Runes
Avoid clumping up so that Wukong won’t be able to use his ultimate to its full potential.
Wukong usually uses Decoy after using a Nimbus Strike. Try to hold your abilities for an extra second to see if he did use Decoy.
Having a pinkward or an Oracle’s Elixir will let you see Wukong even if he uses Decoy.
Wukongs Q reduces your armor temporarily, try to duel him after the debuff expires.
Clicking Wukong before he uses his clone will show the status window on the top left. This status window will disappear when he uses his clone.