For those supports that feel like no matter what they do their adc can't carry. Rush your ancient coin, then boots of mobility. this gives you the most optimal potential for roaming and getting to lane to miss less exp. Your already at 10% cdr and your movement speed while charging Q allows you to hit them more efficiently if they are moving away opposed to side to side. At that point you have to predict, just watch their little feet's that should help. Next determine whether you need armor or magic resist more. In which case a hexdrinker or glacial shroud. If you're ahead I prefer glacial shroud or even the damage item caulfields warhammer. Both give you cdr and bring you on your way to 45%. A last item can go between mortal reminder and lord dominiks depending on their healing and tankiness.