1. Set up entry hazards. (Stealth Rock, Spikes, Toxic Spikes)
2. Send out Prankster Riolu.
3. Roar
4. Copycat spam and rack up the damage (which will copy the last move used, including Roar, and will always have +1 priority due to Prankster)
Literally the only way to stop this is with Protect, Soundproof, Suction Cups, or other priority moves. I just now discovered this was a thing.
Yeah, Kinfin told us about this just before he left Ludi. :I
