Also, I am thinking on explore the dual status mechanics. We can have DAMAGING and DEBUFF status, so I am thinking about Parassect. But when i discovered that spore wasnt working, I left this idea behind...
But a Parassect with Spore and Toxic would be strong. Add Giga Drain and some other coverage, we have a real pain to kill pokemon, if you get it bulky with EVs.
Another good idea would be a Raichu with thunder wave and toxic, thunderbolt as STAB dmg and something else... idk.