My thought process.
Starter:Bulbasaur
Now, whats bulbasaur weak against? Fire, but I can't get a water pokemon yet...Psychic? No dark type pokemon at all... Flying! I know!
Type coverage:Raichu
Now, we need a sweeper
Dugtrio!
Hmmm.... My team is fairly weak so far, how about a tank?
Special tank: Lapras!
So, we got a physical sweeper, a special tank.... what about
Mixed attackerorygon
Huh, odd No flying pokemon. and what will I do about ice pokemon?
Type coverage:Aerodactyl
Thats how I get my teams.
I could go way more in depth, thinking about natures and moves, items, etc
But that's a simple, yet effective team.
Starter:Bulbasaur
Now, whats bulbasaur weak against? Fire, but I can't get a water pokemon yet...Psychic? No dark type pokemon at all... Flying! I know!
Type coverage:Raichu
Now, we need a sweeper
Dugtrio!
Hmmm.... My team is fairly weak so far, how about a tank?
Special tank: Lapras!
So, we got a physical sweeper, a special tank.... what about
Mixed attackerorygon
Huh, odd No flying pokemon. and what will I do about ice pokemon?
Type coverage:Aerodactyl
Thats how I get my teams.
I could go way more in depth, thinking about natures and moves, items, etc
But that's a simple, yet effective team.