Ability: Cute Charm
Held Item: Metronome
Echoed Voice - Works really well with Metronome, will likely be one-hit KOing by the second or third consecutive use of this move.
Foresight - To hit the double teamers and the ghosties.
Sing/Thunder Wave - Just in case you need to put a fool to sleep or paralyze them to build momentum with echoing voice.
Attract - To help keep fools off of you as well.
There are definitely far better Pokemon you can run this moveset on, but if you're like me and you really want Delcatty on your team, it should hold its own with this moveset. You can even do impressive damage with Skitty running this moveset.