>>4610I've been in that case three times. And in every case, a freshly evolved Timid Diggersby's Bulldoze kills the Sevipers while leaving half the Zangoose's life.
>>6762 proposed some other options, but most of them require two turns or more, giving the risk of killing Zangoose too, and no option isn't risky due to risk of criticals.
>>4625Lunatone or Solrock doing Skill Swap on the shiny Geodude, giving it Levitate. The others kill themselves with Magnitude. Switch to a poke whose skill prevents explosions.
>>4650One of the rare cases where Flareon has a useful move. Synchronoise, a Psychic attack that'll only hurt pokes with the same type as the user.