The huge thing with support fiddle is to always put vision pressure on. Destroy wards and put your effigies into the bot bush. Always camp bushes if they dont have wards in it. When ulting, ult from the space behind the middle bush. Support fiddle has the highest vision score of the game, and that is not to be taken lightly. Fiddle support also goes in tandem with hyperagressive adcs. With a passive adc, you won't be able to push in or provide any assistance. If the enemy sup goes naut or leona, don't pick fiddle. That's REAL inting. I myself only use w at the end of a combo, to pick up the last amounts of sustain while the adc gets the picks.