-High Burst Damage throughout the game especially his Taste Their Fear deals 'tons of damage' if the target is isolated. Roaming is advised.

-Can go Mid, Top or Jungle

-Activate your passive by entering the fog of war or going inside a brush.

-The items you will require all depend on your early game. If you have a strong start and are not mana hungry i suggest going for the ad assassin. However if you fall behind with farm or ad even hp go for the muramana path as it will have much better sustain. The boots you will need all depend on your laning. Taking to much magic damage? Take mercury's treads etc...

-If you need health as you are finding to be too squishy get a giants belt or a black cleever.

-Farming can be hard with Kha'Zix especially mid lane if you are laning against a ranged champion. Take advantage of your Void Spike whenever possible poke at the enemy and pick off minions from a far.

-As soon as you reach level 3 poke at your enemy with a E,W,Q combo. Leap will deal damage so will W as well as slow them and Q to deals tons of damage if isolated.

-In team fights you want to make sure that your leap is a certain kill. If you leap and get an assisst or kill your leap cooldown will be immediately cancelled, so you may leap to safety in a sticky situation.

-Try to find stragglers (prey) and make sure you use your Taste Their Fear well when the target is isolated.