Psychic should be an option on Umbreon to hit Gengar and Heracross moderately hard.
Houndoom soulde be noted as a gengar counter.
Not really, because two moves that Heracorss almost always has one or the other of, Rock Slide and Brick Break, heavily damage Houndoom.
But a counter has to switch in, and even a megahorn absolutely destroys houndoom. 2HKO at least.
Houndoom is a very shaky Gengar counter IMO; Focus Punch will KO it so it can't switch into that. Substitute will fuck it, too. Not to mention some Thunderbolts 2HKO some Houndooms. It will kill Gengar with Pursuit/Crunch, but it has some trouble getting in.
I have about 57,000 changes I've thought up so this post will be updated everytime I remember them.
Dewgong-A piece of crap right? Right. So then a crap move like Fake Out to surprise things like EndRevvers might be cool.
Endure effectively shuts down Dewgong if used when the opponent expects Fake Out.
Magneton-SkarmKiller ok thanks. Why not use Screech + HP Fighting/Return/HP Steel as an option to fuck with Blissey while you are at it? (I will make a post on mixed maggy sometime soon)
Way too situational, and most people send in a fast Earthquaker to finish business.
Dugtrio-Zomg "u gotz trapd nub". Slash could be mentioned if you would like to go on a late-game CH rampage sorta-thing.
Please no. STABed Earthquake does more than CH Slash.
Frenzy Plant is useless and the fact you aren't taking advantage of 2 of Venusaur's greatest assets (Leech Seed and Sleep Powder) is wasteful. Most things in Standard kill this hard.