Sinistcha

Sinistcha is the primary Trick Room setter, giving Snorlax the speed control it needs to move first in slow-speed environments. Hospitality passively restores HP to its partner when it switches in, which synergizes with Incineroar and Slowking pivoting out via Parting Shot. Relaxed nature with 32 Def SP maximizes physical bulk so it can tank hits while setting Trick Room. Focus Sash guarantees it survives at least one KO attempt to get Trick Room up. Rage Powder redirects incoming attacks away from Snorlax for one critical setup turn, and Life Dew heals both active Pokemon simultaneously.