[Foxamivalth]

Ha! That Big Papa Bear is coming again!
Larvesta, use Magnet Rise to avoid any dangerous ground shaking moves that the Barenstien may use. Then, Will-o-Wisp to burn him. If Safeguard is active or Protect/Detect the second turn, use Substitute @1HP. If you're Taunted, always use Flare Blitz.

Magnet Rise / Flare Blitz ~ Will-o-Wisp / Substitute @1HP / Flare Blitz

EDIT: Just realized, Blaziken is poisoned, not toxic-poisoned. So his poison damage is still 3, not 6. ^^; But he's still KO'ed with -1 HP. :P