luv you tressed
As many people know, I'm a pretty big Houndoom fanatic. It gets a lot of hate for being "mediocre". And it is. I'm not going to lie, it takes a whole bunch of team support and a lot of knowledge on how to use it for it to be effective. Common checks in Azumarill, Keldeo, and Tyranitar, among others, makes its life pretty difficult, and a weakness to Stealth Rock and a mediocre typing that leaves it weak to common attacking types means it isn't going to last long, even with its decent defenses. I've used it for a long time, and, even though it catches people off guard, full-on sweeps can be hard to come by. However, people generally only look at the bad sides of everything, and Houndoom's positives more than outweigh its negatives, in my opinion. People look over its insane power after a Nasty Plot with a really nice Speed tier that allows it to get the jump on the crowded base 110 tier. +2 Houndoom is a pretty impressive thing, OHKOing common threats like Hippowdon, Rotom-W, and Assault Vest Tornadus-T after Stealth Rock damage (it lives a Focus Blast from full as well). I've done a little meddling with Sunny Day sets as well, and while under Sunny Day, Fire Blast literally OHKOs 70%+ of the tier (Keldeo takes upwards of 85%... cute switch in), it's even harder to pull off then the standard set. Taking that damage per turn might not seem like a problem, but with no recovery and a large weakness to entry hazards, you'll be down to 50% within two turns. If you really want to use this set, Sunny Day Klefki seems pretty neat (credit for the core goes to BlazeLatias.), being able to give Spikes support as well. Venusaur also checks Keldeo and Azumarill and handles bulky Ground- and Water-types, so yet another good teammate.
After skimming through Houndoom's some-what lackluster movepool, I found it has access to Super Fang. This might seem really stupid at first glance, but it's honestly one of its best options for the last slot (You know, dual STABs, Nasty Plot and whatever). Common switch-ins to Houndoom include Heatran, Tyranitar and Keldeo, all of which lack any form of reliable recovery, and in the end it pressures the hell out of Chansey, generally meaning it's going to be forced to recover. Taking a massive chunk off of their HP means they're going to be pretty vulnerable throughout the rest of the battle. Combine this with Spikes support from Klefki or Skarmory, this damage is going to rack up pretty fast. Sadly, using Super Fang means that Altaria becomes an issue, so keep that in mind.
So yeah. Mega Houndoom. Fun as hell to use and certainly blows people away when using it. Its issues sure show but it's definitely worth using in the long run if you're willing to be unique.