>>54969641Here's a handy tip to improve your odds. Eat a dragon sandwich, and move around in such a way that no more than 4 things despawn at a time. By doing this, no "pack spawns" can appear, which includes the unavoidable Houndstone packs, as well as the Gabite packs. Only Zweilous and Roaring Moon will be able to spawn.
My personal method was taking a few steps at a time, while a fast 'mon ran around to KO random things.