I walked into White 2's Elite Four with only a few Revives, ran out of them after defeating two members, and am now trying to get more through the Dream Radar. I've only gotten two out of six cloud-lasering sessions because apparently burying me in Sun and Moon Stones is supposed to be more helpful.
Edit: Swept Caitlin with my Crustle, ended up using both Revives after Marshal, didn't have much of a problem with Iris. Final team: Watt (Ampharos♀), C.Blackeye (Krookodile♂), Jeff (Crustle♂), Viridi (Sawsbuck♀), The Bumble (Beartic♂), Jenny (Golurk).
Now it's time to trade everything over from my not-real White game and blow up the PWT and Battle Subway. And wait for X and Y... where I'll do it again. And so long as Game Freak keeps the games compatible with each other, again and again until I am battling my grandchildren with pokémon real decades older than them. Oh my god.