I think instead you should use a Pokemon with trick room and teleport like Xatu, and the status moves your opponent will use will be bounced off or stealth rock and sticky web or spikes, so use trick room first, then use teleport to Amoonguss and use spore then start to set up with Amoonguss, That, my friend, is my opinion and I ever used this strategy and won a couple of times.
here:
Xatu@Focus Sash
Ability:Magic Bounce
Nature:Timid Nature
EV: 252 SpA/252 Spe/4 SpD
-Heat Wave
-Psychic
-Teleport
-Trick Room
Heat Wave to eliminate all Bug Types and powerful Flying Types like Corviknight and Skarmory that could really prove a threat to Amoonguss and Psychic for the STAB move. Trick Room to set up on the first turn or maybe after done eliminating or weakening any threats against Amoonguss, then Teleport to bring Amoonguss in safely. Magic Bounce to give Sticky Webbers or status Pokemon bad karma.