and not everyone in the world has a floating ghost in their team...
Which is where the metagame comes in play. If you don't, why are you not getting one?
though we can just suspect that it's probably going to be a normal attack or earthquake, it's still hard to beat.
Will o Wisp halves attack power. If it resorts to resting, you have 2 turns to pseudohaze it away. Simple.
what if someone uses the normal Curselax but is trying reverse psychology on you pretending that it's a Blocklax?
Bulk up, Cosmic power, Curse, OHKO, Charm, Growl, Sleep powder, Attract, WIll-o-wisp, Skarmory, Steelix, Scizor, Forretress, Aerodactyl, Swords dance, need I say more?
Then your little ghost is lured out... and then in comes the shadowball... i don't give my curselax earthquake anymore but shadowball to go up against Shedinja (who can easily stall you out) and Dusclops. These 2 ghost types are very common...
And does nothing to Skarmory regardless, along with Tyranitar, Aerodactyl, and just other things in general, Steels are great against both DE and shadow ball. Regirock's hard defense wouldn't have much of a problem either, and the Regis are quote OU'd.
With double edge and shadowball, that leaves only Skarmory alive against Snorlax...
And every other Steel, Tyranitar, and anything with great defense like Regirock, which also learns curse.
you never know if the opponent's snorlax is really a blocklax or just the old fashion curselax... but what if it's really a blocklax?
Bulk up, Cosmic power, Curse, OHKO, Charm, Growl, Sleep powder, Attract, WIll-o-wisp, Skarmory, Steelix, Scizor, Forretress, Aerodactyl, Swords dance, need I say more?
Then i have to pull out pseudohazer immediately... or something immune to ground/normal.
Or you can play it nicely and play 202 until Snorlax comes out, because once lax comes out, you'd have better things to worry about, such as Calm minding legendary beasts, or Blissey the heal beller.
or is the opponent trying to lure out one of my pokemon? It's not the fact of beating a blocklax, but the fact of guessing the opponent's moveset that makes Snorlax a hard one to beat
Not really. Curselax does have a lot of weaknesses in RS regardless of how you make it. EV distro guarentees that it either start with low Defense or spD, so you can take advantage of that early with a super duper sweeper and KO it early. Get out your Dragon dancer earlier, Dance up and kill lax in 2 before it can curse up. Will o wisp forces lax to rest so you can roar it away. Destiny bond still works in RS. Stuff like that. If you really think lax is unpredictable as it is, isn't Mew? How about Walrein? How do you know it's not a OHKO talker? If it is, how will you deal with it?
(and it's unexplainable stuff like this that gives Pokemon game the addictive fun it has)
Yes it is, but Lax isn't even 202 legal :)