Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Rquesting a Mono Poison team with Toxic Spikes Toxapex and Hex Gengar. Hex can eliminate would be checks and the commitment to make it strong has no drawbacks. Sadly it really only sees use with Giratina. Here are the sets:
Toxapex @ Black Sludge
Ability: Regenerator
EVs: 252 HP / 168 Def /...
https://pastebin.com/c6ycaYaH
Here is my trash ft. Ambipom, Fell Stinger M-Bee, spikes anti-setup Keys, scarf Lati, sub seed Serp and a Crocune variation. Enjoy.