You can't shut that topic down without providing proof of why AV isn't viable instead of pure theorymonning. Numbers first please.
It doesn't take a genius theorymonner to figure out that a Pokemon with poor defensive typing, easily exploitable Special Defense, crap Speed, and the inability to heal is pretty much doomed for failure. These traits may remind you of Pokemon like Aggron, but at least Aggron can make its presence known with Rock Head STAB Head Smash; Avalugg's best move is boosted Avalanche, but if it is unboosted it sits at a paltry 60 base power, which Flareon will laugh at even if he didn't (finally) get Flare Blitz.
252 SpA Life Orb Greninja Hydro Pump vs. +1 252 HP / 0 SpD (custom): 243-289 (61.67 - 73.35%) -- guaranteed 2HKO
252+ SpA Goodra Fire Blast vs. +1 252 HP / 0 SpD (custom): 314-370 (79.69 - 93.9%) -- guaranteed 2HKO
252 SpA Mega-Gengar Shadow Ball vs. +1 252 HP / 0 SpD (custom): 196-232 (49.74 - 58.88%) -- 99.61% chance to 2HKO
252 SpA Mega-Gengar Focus Blast vs. +1 252 HP / 0 SpD (custom): 394-464 (100 - 117.76%) --
guaranteed OHKO (Well that doesn't help :P)
0 SpA Togekiss Aura Sphere vs. +1 252 HP / 0 SpD (custom): 166-196 (42.13 - 49.74%) -- guaranteed 3HKO
0 SpA Mega-Venusaur Sludge Bomb vs. +1 252 HP / 0 SpD (custom): 139-165 (35.27 - 41.87%) -- guaranteed 3HKO
Avoiding OHKOes is good and all....until you realize you cannot heal, there is no guarantee you'd even beat these sweepers, and you basically throw away Avalugg's biggest selling point, which is to wail on physical sweepers with
titanic physical bulk and Recover, meaning you'd expose yourself to physical sweepers as well. Tell me that is not a recipe for failure.
You will also have noticed I only put max HP as the only defensive investment. The rest went into Attack because an Avalugg that cannot heal is a dead Avalugg, so you might as well hit as hard as you can, so don't even try to invest any more in defenses unless you want to be even more of a sitting duck.
Assault Vest Avalugg does not make use of its traits, because:
1) Even it if has just enough moves to fill 4 slots, it shouldn't really stick to attacking as its moves aren't really
that strong. Especially Avalanche, which can turn from "strong STAB move" into "lol setup fodder", and makes it weaker than Earthquake and Stone Edge as a result.
2) Avalugg cannot switch into
anything without fearing some sort of 2HKO. Even with its huge physical Defense, Avalugg resists almost nothing and is likely 3HKOed at best.
3) Avalugg is really damn slow. Even if it somehow manages to KO something, it will have taken damage and due to its inability to heal, it can no longer contribute much at all, if it even did in the first place.
4) The hazard weakness, jesus christ. If for some reason you wanted to spin with this thing, you're better off using
Armaldo or
Torkoal at that point, since they have actual resists.
5) You're not
walling physical attackers anymore, you're now hoping to KO them before they KO you, which heavily undermines that '184 Defense' thing.
6) You wanted to tank special attackers with that typing? There are sweepers few and far between that
don't carry a move that is super effective on Avalugg. If they don't, they either have a boosting move or just hit hard enough anyway.
7) Even with Assault Vest, Avalugg's newfound special bulk is still very poor, and you cannot even make use of it with Recover. As you can see, the only kinds of special attackers that don't KO have no offensive investment whatsoever so it is hardly a noteworthy feat.