As a special note, T-wave and Nasty plot are effective as mentioned, but I might also vouch for Taunt.
Taunt is one of the most common moves with Thundurus, as it is the second fastest user of Prankster (just about falling short of Whimsicott), being one of the bulkiest users as well (without item support), and can stop many Pokemon, such as hazard setters, clerics and other Prankster users cold.
That was one of the main points on Taunt Thundurus, but many of them utilize Substitute fairly well as well.
In the end it falls down to what you need and not the best move in my opinion.
Hope I helped!