haha i run the same Glaceon set. it's a beast. one suggestion, however. drop water pulse for yawn. it's a lot more handy than water pulse as STAB Specs Ice Beam does more damage anyway. mine actually has hp fight for probobass/bastiodon, the latter gaining popularity for some reason... stupid stall ._.
i'd try something a little different on scyther. i'd drop x-scissor for sub and instead of life orb give it salac. this way, you can shield it from priority and scarfers. after switching in on Srock, it only takes a sub with 12 HP investment to activate the salac berry. i mean, honestly, scyther obviously isn't fit for switching in and out. giving it a bit of assurance against prepared counters will give you more opportunities for a sweep.
only other thing i can suggest is dropping waterfall on quag for earthquake. quag hits other waters harder and has better coverage w/ both eq and ip anyway.
but yeah, cacturne would give this team trouble lol. sandslash is very cool but having two defensive tanks with grass weaks is going to hurt you. rapid spin is so overrated =/