In Generation 1 this stat gives an increased chance for critical hit
Speed
Cacturne and Hitmonchan
Humanlike
The reason it hasn't changed in a hundred million years is that it's apparently already a perfect lifeform
Relicanth
Speed Star
Swift
What Starter has the most world champion wins?
Inciniroar
This Generation 2 final stage pokemon had it's name cut by a single letter due to system constraints
Feraligatr
Druddigon and Loudred
Monster
The light it emits is so bright that it can illuminate the seas surface from a depth of over 3 miles
Lanturn
Suprise attack
Sucker Punch
What generation was prankster nerfed to not work on dark types
Gen 7
Due to a bug this move in the first generation divided crit chance rather than multipying it
Focus energy
Reuniclus and Sinischa
Amorphous
It feeds on soil. After it has eaten a large mountain it will fall asleep so it can grow.
Larvitar
Shadow Clone
What generation was Weather setting abilities nerfed to not be infinite anymore?
Gen 6
In gen 1 this high power normal move would not have a downside if it knocked out an opposing pokemon
Hyper Beam
Skitty and Wailord
Field
For some reason it likes to land on peoples heads and acts like a hat
Swablu
Eerie Light
Confuse ray
This rock type move can warp entire metas but only in singles
Stealth rocks
Due to a bug in generation 2 these three statuses do not give any bonuses to catch rate
Poison, Burn and Paralysis
Cofagrigus and Snorunt
Mineral
They fly around at high speed striking with their pointed spears. Even when in trouble they face opponents bravely.
Excavilier
Wag finger
Metronome
This normally weak pokemon single handedly got several moves nerfed. Most notably Dark void
Smergle