Well, you don't really need Yawn and Encore on the same moveset, as both of them will basically have the same result, making the opponent switch. Stick with Yawn, or you could even go with Toxic. For the pseudopassing move, there could be more benefit from using Reflect or Light Screen instead of Safeguard. Keep Wish on the moveset, and for the other move, you could try a special attack that will take advantage of Togetic's Serene Grace ability, such as Psychic, Flamethrower/Fire Blast, or Water Pulse. If you are going for a +Speed personality, then Timid (+Speed, -Attack) would be the best choice. Another good personality for Togetic is Calm. (+Special Defense, -Attack)
So, here is what the moveset would look like
Togetic (Serene Grace)
Yawn/Toxic
Light Screen/Reflect
Flamethrower/Fire Blast/Psychic/Water Pulse
Wish
@Leftovers.