100 Training Free [best]: Pokemon Vortex Level

The most efficient way to train a new Pokémon from Level 5 to 100 is to have a "Carry"—a Pokémon that can one-shot everything.

: Defeating a Pokémon in battle before capturing it can double the experience points gained. Efficient Leveling Breakdown Why It Works Training Accounts Speed & Bulk XP High-level, low-threat opponents like Blissey. Type Immunity Low-Level Mons Prevents fainting, allowing weak Pokémon to beat Lv. 100s. Nighttime Battles XP + Money

(for money, not EXP)