I take it the poison effect could kill a weak pokemon?
Here's my proposal. I can take on psyduck. Barring a crit by hydro pump I should survive (speed advantage and 100% hit moves. I don't know if Orange controls the trainer directly or he lets RNG decide, but I should survive (barely).
This lets us investigate route 34 and figure out if me investigating does anything. I have a heal item from night 1 (expecting to heal skarmory), and a full heal from the fight itself.