You can potentially OHKO with 3 layers of spikes. Why do people ignore this fact?
Because it's stupid to assume three layers of Spikes are down every time you want something OHKOed. Some teams don't even use Spikes. Spikes is a popular strategy in UU these days, but people are really abusing this fact to make horrible arguments.
Besides, the LO set is much more popular these days, so in reality, the numbers look like this: 59.3% - 69.8%
Either way, Dugtrio is going to incur some massive damage.
Magneton CANNOT set up on Registeel if it runs Seismic toss which in my opinion is something ALL Registeel should run.
Of course they should, even though it's less practical than running EQ and Iron Head and makes it easier setup bait for Mismagius or Raikou. Regardless of what Registeel runs, Magneton is going to kill it and there's nothing you can do about it.
Why do you keep reffering to *Steels*
Um, because that is their typing? Steel? Yes there are only a few, but it's a worthy cause if the only thing between me and a Raikou sweep is Registeel or Steelix.
You beat Aggron, but Headmash deals (60.4% - 71.6%)
I really wouldn't count on Magneton beating Aggron unless it can get in on the revenge while it hasn't used a Sub or Rock Polish.
Steelix usually career roar.
lol, no they don't. It's not even an option on the standard set. The only place I see a Roar Steelix is on a Stall team, which is generally just to rack up damage from entry hazards.
Dugtrio is much better trapper, and should almost always be considered over Magneton.
No shit? There's just far less risk for Magneton to switch right into Steelix or Registeel and make sure they die so that my sweepers won't have to face them. Once they're dead, just use that awesome base 120 Sp. Att to kill bulky Waters or just explode on something.
Alternatively I could also use both and get a free Raikou sweep for my troubles. Really, that's the only reason I'd even consider using Magneton, personally. Dugtrio is obviously going to be the better revenge killer, since its ability keeps any that doesn't float in place and allows it to get a guaranteed kill, but Magnezone's niche is much smaller and it's better to use that if you can't afford to pack another frail Pokemon and you're only worried about the odd Steel type. Not a very common occurence, but at least it does
something.
You see, Dugtrio doesn't need to OHKO these guys. The true fact is, they can't escape and the Steels can't OHKO Dugtrio except for the rare Gyro Ball Steelix or using Explosion. Regardless, his task is complete since they removed the Steel-types.
Dugtrio can still kill more Pokemon if you don't go out there and suicide him like an idiot. If you send him out to kill Registeel prematurely, he will get hit by Iron Head and LO recoil, then revenged by something else, since there's no point in you'll let him die (not like you have a choice if there are any Spikes down), then Raikou or whatever shows up. Whoops, bad idea. Oh, and all Steelix run Gyro Ball, so there's no way I'm coming in on that thing until at least half its health is gone.
I would really prefer to keep Dugtrio alive as long as possible to make sure it kills anything on your team that might pose a threat to one of my sweepers. Sending it in on Steelix or Registeel right away is just plain silly.