@NeilKosugi Bring a Mawile. It must solo Tate and Liza (that's right the only pokemon in your party). You may only use a healing (or curing) item on it for every item used on a pokemon facing it, these do stack, you may keep a running tally. Every time Mawile Faints you must teach it a TM, it must be an attacking move with lower BP than the Move you are replacing (also, you must replace an attacking move). Mawile must have no fewer than two attacking moves at any time.