
Riki is a melee agility carry who's great at ganking and quickly killing off squishy enemies from the shadows of invisibility. Although rarely picked in competitive matches, he is a popular 'pub stomp' hero.
Skills
Get a point in Permanent Invisibility (if unsure of your safety in the lane) or Backstab (if in a safe lane) at level one. Get the other at level 2, then a point in Smoke Screen at level 3.
After that max Backstab, then Smoke Screen.
Get your ultimate, Blink Strike, whenever you can (levels 6, 11 and 16).
Items
Starting Items: Tangos, Healing Salve, Stout Shield, 2x Branches.
Core Items: Poor Man's Shield, Magic Wand, Power Treads, Diffusal Blade.
Luxury Items: Black King Bar, Manta Style, Butterfly, Skull Basher into Abyssal Blade.
Situational Items: Vladmir's Offering, Assault Cuirass.