Lee Sin
Nintendo 3DS Legend
Towns Folk
Used to do that at first but then as time went on it was almost the other way aroundI regret my habit of using only my starter back then. I always ended up having an overleveled starter while the other five Pokemon on my team suffered. I didn't really run into much problem until Tate and Liza's gym on Emerald. Why? Because I got Torchic as a starter and this gym's Claydol/Barboach loves spamming Earthquake. Always 1OHKO'd Blaziken. And well, the other underleveled pokemon in my team just get rolled on haha.
Would have saved me a lot of frustration if I didn't play like that