So first time I was starting out as Varus it was very hard to play when I was playing as Varus first time in a Co-op vs. Al, I got a surprisly 1/9/2 score and only 21 minion kills. But after playing as Varus for a few games. I got used to Varus and I became a total badass as Marksman. Varus is a ADC bottom for me. His attack, skills are very overpowered, but one problem was his Mana.

Now you don't have to exactly follow this first noob build but you always want to have runes that cover up his weakness without the rune you always want a steady supplies of +what ever amount of mana or +mana per/s runes. And you might want to have rune that do a mothertruck load of damage for basic attack and skills.

Ya always want items that increase the mana and mana regen and sometimes you might want to have core items that also increases health and attack. And always remeber if you are making a build for any champion you always want a plan for boosting gold.

Don't dare you quick cast all your skills you want to quick cast only the Q skill and the E skill you don't want to quick cast R skill because it traps champion, a total lol thumbs up.
Make your q skill level up key at A, W skill level up key at S, E skill level up key at G, R skill level up key H. First upgrade the passive skill by one and then upgrade any skill you want.

"Don't you trust me.", no Ahri because you a total threat to this build. What I found out is this build is good againist Melee but bad againist mages.
Pros:
The attack is total Op.
Gives player a good experience.
People will think your a total badass.
Cons:
Very costy.
Kinda hard for good players.

Definitely not creepy, this build is not recommend for juggling. Only for Juggling Union Mature players only.

This guys works well Nunu surprisly so one day I did custom bot match me and Nunu bot went in the same lane we killed the first 2 turrets out there in 10min. Definetly works withs melee type because you got the melee covered and melee can cover you back. When with another marksman it OP team.