That's not really making the game more challenging. It's extending the length of the battle and potentially turning it into more of a slog. --- "Murder of the living is tragic, but murder of the idea is unforgivable." - Janus, speaker of the synod
They could just do it how they use their full restores.
If they're on their last pokemon and you don't ohko it, or ko it by the time it's past half health, they'll either use a revive. Just once --- Everyday the sun comes up around her, she can make the birds, sing harmony! http://i.imgur.com/VBsWOu2.png <3 Ain't no woman like the one i got..
Much more of a challenge than lolrevives or f***ing Full Restores. --- Ragnarok: Tetra Vortex Warlock :3 "My scouter broke. The awkward level is off the charts." - nickcool1996, accurately describing Miyako Hotsuin.