Threat List (Sorry I'm late I make it late in the night lol)
Venusaur Spiritomb is my main counter,can be a trouble sometimes
Arcanine Slowbro and Kabutops is my main switch
Porygon-Z Hitmontop
Cresselia Spiritomb is my main answer
Raikou Registeel is my main counter,Venusaur next in line
Milotic Venusaur is my bet,Slowbro make it a set-up bait
Uxie Kabutops,Spiritomb set-up on it
Registeel Spiritomb set-up on it,Venusaur and Hitmontop also set-up on it
Ambipom Kabutops handle it,Hitmontop next in line
Froslass Lead variant are defeated by Kabutops,Spiritomb can deal with non-lead variant (rare though)
Rhyperior Kabutops deal with lead,Venusaur and Slowbro deal with sweepers
Azumarril Slowbro walls it to no end and set-up,Venusaur
Donphan Slowbro,Venusaur gotta be careful with Ice Shard
Mismagius Registeel,Spiritomb
Sceptile Venusaur can set-up on it,Spiritomb wall this
Hitmontop Venusaur beat Rapid Spin variant,Slowbro check it quite reliably
Umbreon Hitmontop setting-up and also Venusaur,Registeel wall this
Moltres Kabutops beat lead variant,otherwise it is a trouble but Slowbro can check at full health
Alakazam Spiritomb deal with it
Spiritomb OK this thing is quite a trouble,but everyone except Slowbro can set-up on it
Clefable Hitmontop,gotta be wary of Flame Orb,Spiritomb also deal it
Swellow Registeel, Slowbro
Altaria Spiritomb and Slowbro is my bet,Fun Fact:Venusaur can beat defensive variant provided Sleep Powder always hit
Feraligatr Venusaur,after it got some DD it's a trouble
Blastoise Venusaur,Spiritomb also set-up on it
Dugtrio The only thing it can beat is actually Registeel,It beat such important poke though
Claydol Venusaur and Slowbro beat it reliably
Steelix Slowbro,Venusaur can set-up
Slowbro Spiritomb setting-up
Kabutops Venusaur is my main switch
Blaziken Slowbro can deal with it,Mixed variant is outspeed and beaten by Venusaur
Rotom Spiritomb,Registeel,Venusaur also,gotta be wary of WoW though
Chansey Venusaur and Hitmontop,Spiritomb can outstall with Pressure
Toxicroak Spiritomb,Venusaur can also beat it
Regirock Venusaur and Slowbro
Houdoom Hitmontop is my main counter
Ludicolo Ah rain teams,my best bet is to outstall rain turn with Registeel
Drapion Venusaur handle it,Registeel somewhat
Torterra RPtorterra is quite dangerous,I can only wear it down from LO damage and then finish it with Venusaur
Scyther After few Bulk Ups,Hitmontop beat it reliably,Spiritomb can handle it,cannot let it get SD at all cost
Omastar Venusaur,Rain teams is hard to deal though
Absol Hitmontop,Spiritomb also
Lanturn Venusaur setting up,Registee also
Cloyster Lead variant handled by Kabutops,non-lead is on mercy of Venusaur
Qwilfish Venusaur and Explosion can be taken by Spiritomb
Aggron RPAggron is troublesome,Slowbro can check and Registeel can beat weakened one
Hariyama Slowbro can take hit because Slowbro is slower (payback) and retaliate with Psychic
Weezing Slowbro,Spiritomb set-up
Hitmonlee Slowbro,Spiritomb also set-up
Nidoking Slowbro again
Credit to Pastel for making the list!