U should use ur Q on the minion to hit adc bihind them.
When ur in team fight stay bihind ur tank and use ur ulty to put stacks og impure shots.
Ur best combos are E W Q than finis the job with R, or too use ur ulty than E so thay cant run away and than use W and Q.
Since ur adc u should farm at least 70 minion every 10min, remebre 20CS = 1 kill.
Its hard to score 70 in 10 min epecialy in early game so caunt on ur supp to help u. GL Summoner