Hmm, that's annyoing.
Hedwig, Tinted Lens Air Slash on Rotom and then Mirror Move Earth Power on Rotom.
Forest Fire, Earth Power Rotom and then use Leech Ssed on Rotom.
Maui, use Dragon Claw and then Crunch on Arcanine.
Samsung, use Air Slash and then Thunderbolt on Arcanine.
Volcarona, use Psychic on Duskull and then HP Ground on Arcanine.
To all applicable: If Arcanine is dead, target Rotom.