Keiran: Hack into your game the following pokemon:
Level 10 Scyther
This is the ONLY pokemon you can heal at a pokemon center, and you may only use him to catch other pokemon. Now here's the meat of your challenge. You may not heal any pokemon you use at a pokemon center aside from the aforementioned Scyther, until you complete the 4th, 8th, 12th and 16th gyms, in which you may heal those pokemon ONLY once in each instance. Now, this pretty much means you will need to continuously catch new pokemon (including duplicates) because you will be losing the old pokemon for long periods at a time as they get worn out. You MAY use items to heal though.
You asked for crazy hard, here it is.
Pokemon White FC: 4212 3513 8759
Pokemon LV 1 Challenge: Cynthia Morimoto
Pokemon Roulette Nuzlocke Challenge Ep: 1 2