Ask someone to help wolves and leash blue.
head on to wraiths
go to golem
go to lizard and start ganking
if you run out of hp recall then begin ganking.
use pots only if needed.

other good summoner spells to reconsider to exchange flash
ghost
ignite

During team fights you should be lurking around to get the squishies that people often never pa attention too. You should be able to assassinate those people then join in with the rest of your teammates.

DO NOT EVER EVER EVER EVER CHASE SOMEONE IF YOU KNOW YOU CAN'T GET THEM OR IF YOU GET THEM BUT DIE IN THE PROCESS.