If I choose to be quick, I’ll be less quick. Magneton faster than Magnezone
If I choose to be stiff, I’ll be less stiff. Magnet Pull and Sturdy...?
If I choose to meet my end, I must choose to meet a beginning The end of a Magnemite's life is Magneton, which begins two new Magnemites
But if I’m anything like the one who fights with the beginning The Magnemites in the first two PMD games?
The beginning won’t let me meet my end In the beginning parts of the first PMD games, the Magnemite you get cannot evolve
HINT1: No part of this riddle mentions moves that affect stats.
HINT2: This pokémon is not found early in any main game Depends on what you can consider early, because they do appear in Virbank Complex. It appears extremely early in PMD games though.