For this build you gota be good with teemo, if you can rush your soul stealer early game, you can get a lot of stacks form being good at LoL or team fights, at the end of this build youl get shrooms every 16.2 sec, if you know were to put them youl be picking up kills all over the map.

If you are short on gold or if your team isent doing too well you should get the nashars before yor deathcap, the cd reduct, and atack speed comes in handy.

Also dont forget to add your own twist to your build, i like it this way cus it fits the way i play.

Your blinding darts and your poisn will be your geratest tool, with the right harass with your auto atack and spam blinding darts, if they pop one boom shroom, you probly can pick up a kill.

Some people may want tele instead of flash or clarity, this is helpful for telling to your boom shrooms.