Here's a quirky (or should I say Timid) moveset:
Timid (+Speed, -Attack)
252 Speed/252 Special Attack/4 HP
Here's the strategy: Start off with Soak if the opponent is Ground-type (which makes them lose their STAB EQ, etc. and sets them up for being T-Waved next turn) or start off with T-Wave if the opponent isn't Ground-type. Now that they're paralyzed, Electro Ball yourself to victory while nabbing some recovery via Ion Deluge.
Now, I realize that this Lanturn in particular is frail, but that's why I gave it max Speed-130 at Lv. 50-which'll allow it to out-speed most Ground-types. No investments in defenses because you're basically shutting down the opponent and KO-ing them rather quickly.
I'd say this set works just as well in Singles as other formats.