Now you can. Introducing Celestialzen's Super Teemo Guide.

You want the most output possible since your going to be an assassin.
Both magic pen for your Dots and Armour pen for that lychbane bonus is required to do its full potential

I mainly use flash and ignite for that getaway/chase and ignite for that extra tick with your dots. All other summoner spells are based on YOUR preferences

Well since your an ASSASSIN you mainly go around cloacking in key areas and outputting the most dmg possible. Your shrooms are a major help too if you ward them in the correct areas. And for that extra speed/mr/armour that lych and madreads provides its good enough protection to get away/chase in key situations.

Core items

For that aspd and tank shred + armour

For that extra ap burst/speed/mr

For that nukeage, Goes great with Lichbane

Situational Items
The next items are situational items, All depends on your gameplay, style, current situation.

If they stack mr and your looking to nuke more this is the business

Looking towards a faster nukeage? look no further

For the times you want more hp and slow

Good for that 2 second chasis to get your cd back and your bonus armor

Makes your aspd go up to 2.0+ without cloackage. Good for the aspd assassination

To help your other ap carries out

If your doing enough damage with all the other items and just want to get more survivability