You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
IIRC you can only get one per playthrough. That restriction aside,if you were able to get multiple, you could equip them onto multiple Pokemon, and they each get a share of the EXP.
Minor problem being that for each extra EXP. Share, the fewer EXP. any of those Pokemon get, which can make leveling them all up slow, unless you frequently swap Pokemon.
Normally I end up overleveled playing Pokemon because I end up focusing my build on one or two Pokemon. But in Emerald over the summer I played with a team of four, all with EXP. Shares, and two HM slaves, and ended up underleveled by the Elite Four. Actually made for a nice challenge.
See me on Discord! ^.^ Eevee's Mystery Dungeon: https://discord.gg/qavbtaQ