Pokémon Crystal: LT. Surge

Steelix used Sandstorm on the first turn to make sure Espeon OHKOs both Electrode with Psychic. The critical hit was not necessary.
My team:
Level 47 Steelix
Level 46 Houndoom
Level 46 Victreebel
Level 47 Espeon
Level 51 Gengar
Level 51 Feraligatr