Heres my new team. I tried to make it much more balanced with plenty of support.
Drapion @ Leftovers
Dusknoir @ Leftovers
Ursaring @ Toxic Orb
Froslass @ Life Orb
Lucario @ Life Orb
Bastiodon @ Leftovers
Ok, so my idea is to lead with Drapion and set up with Toxic Spikes, then he can hold his own with the listed moves and Nature, Hasty in case the opponent OHKO's him, he'll still be able to set up Toxic Spikes. Dusknoir comes in throwing a bone in, taking advantage of his movepool and good atttack instead of worrying about wearing them down with status. That would be expected, besides, the Toxic Spikes should do their job unless the switch in a poison, which would simply pull their team out of order.
Ursaring with Guts + Facade is scary, Toxic rb doing the job. He's not meant to last long, especially with his lack of speed. The poison will sap his health, but his strength with a Facade at base 140 to use at whim is very scary, plus Guts boost.
Froslass @ Life Orb to pump his STAB moves; Thunder Wave used to cripple anything Toxic Spikes dont hit or if they are removed, and Hasty Nature to ensure she can get off Destiny Bond before death.
Lucario + Attack Nature + Swords Dance + Any attack = Scary for opponent.
Extremespeed to outhit his faster yet fragile foes. I decided to opt for a wide range of attack, possible Sweep, but that is doused with my using of Life Orb.
Bastiodon being the all around "Great Wall". Was thinking Metal Burst, possibly will use, but the Curse adds to his already overwhelming defense, while pumping attack for Iron Head can even make Bastiodon scary. Plus Rest and Sleep Talk is his only recovery set while allowing options for his moves open.