S Rank

Snorlax  
- Body Slam  
- Hyper Beam  
- Amnesia  
- Ice Beam

Snorlax  
- Amnesia  
- Thunderbolt  
- Surf  
- Ice Beam

Starmie  
- Psychic  
- Ice Beam  
- Reflect  
- Recover  

Alakazam  
- Psychic  
- Toxic  
- Recover  
- Substitute  

Jolteon  
- Thunderbolt  
- Pin Missile  
- Toxic  
- Rest  

Tauros  
- Body Slam  
- Hyper Beam  
- Earthquake  
- Fire Blast

A Rank

Chansey  
- Ice Beam
- Soft-Boiled  
- Reflect  
- Thunder Wave

Rhydon  
- Earthquake  
- Rock Slide  
- Body Slam  
- Bubble Beam

Slowbro  
- Surf  
- Amnesia  
- Rest  
- Counter  

Zapdos  
- Thunderbolt  
- Drill Peck  
- Thunder  
- Reflect  

Articuno  
- Ice Beam  
- Blizzard  
- Rest  
- Reflect  

B Rank

Exeggutor  
- Psychic  
- Toxic  
- Leech Seed  
- Substitute  

Gengar  
- Psychic  
- Thunderbolt  
- Rest  
- Confuse Ray

Hitmonlee (M)  
- High Jump Kick  
- Jump Kick  
- Rolling Kick  
- Meditate  

Moltres  
- Fire Blast  
- Toxic  
- Rest  
- Reflect  

Lapras  
- Ice Beam  
- Blizzard  
- Reflect  
- Rest  

C Rank

Venusaur  
- Razor Leaf  
- Toxic  
- Leech Seed  
- Substitute  

Raichu  
- Thunderbolt  
- Surf  
- Thunder  
- Rest  

Jynx (F)  
- Ice Beam  
- Psychic  
- Blizzard  
- Rest  

Kabutops  
- Swords Dance  
- Body Slam  
- Hyper Beam  
- Surf  

Sandslash  
- Earthquake  
- Rock Slide  
- Slash  
- Swords Dance  

D Rank

Golduck  
- Ice Beam  
- Blizzard  
- Amnesia  
- Rest  

Golem  
- Earthquake  
- Rock Slide  
- Body Slam  
- Fire Blast

Primeape  
- Submission  
- Screech  
- Rock Slide  
- Hyper Beam 

Poliwrath  
- Blizzard  
- Amnesia  
- Submission  
- Substitute  

Electabuzz  
- Thunderbolt  
- Screech  
- Body Slam  
- Hyper Beam  

Persian  
- Screech  
- Slash  
- Hyper Beam  
- Body Slam

Gyarados  
- Ice Beam  
- Substitute
- Hydro Pump  
- Body Slam

Tentacruel
- Surf
- Blizzard
- Acid
- Swords Dance

Nidoking
- Earthquake  
- Double Kick  
- Ice Beam  
- Hyper Beam  

Nidoqueen
- Earthquake  
- Double Kick  
- Ice Beam  
- Reflect  

Unranked

Machamp
- Submission
- Earthquake
- Leer
- Toxic

Cloyster  
- Ice Beam  
- Blizzard  
- Reflect  
- Rest

Charizard
- Fire Blast
- Hyper Beam
- Body Slam  
- Swords Dance

Poliwhirl
- Amnesia  
- Surf  
- Ice Beam  
- Rest

Dragonite  
- Hyper Beam  
- Body Slam  
- Ice Beam  
- Substitute  

Clefable  
- Thunder Wave  
- Ice Beam  
- Body Slam  
- Hyper Beam

Raticate  
- Substitute  
- Body Slam  
- Hyper Beam  
- Ice Beam

Victreebel  
- Swords Dance  
- Hyper Beam  
- Body Slam  
- Razor Leaf

Hypno
- Psychic
- Body Slam
- Meditate
- Rest

Lickitung
- Body Slam
- Earthquake
- Swords Dance
- Rest

Dugtrio  
- Earthquake  
- Rock Slide  
- Substitute  
- Toxic  

Electrode  
- Thunderbolt  
- Screech  
- Hyper Beam  
- Reflect

Pikachu
Thank you for reading and playing RBY 1v1!
Special thanks to Murman for all his help and research!