Core - Farm push lain and poke with your W, you want to use the pressure you make with your fast wave clear to Rotate and Gank OR Press a fight with your all in.
Support- ^ the same as above but you want to bully as much as you can and with luck that your carry is looking and a Rod of Attos will be one hard kill to get away once you go all in.
Also as a support your only real DMG item is your Core items so BUILD THE COUNTER ITEMS YOU NEED TO KEEP FIGHTING!!!!!!!!