Actually, +1 Crunch is a 3HKO, but it's so close to a 2HKO, that if the +1 is from CB and tar switches out once Pert comes in, Tar wins in round 2. You also have to watch out for the potential defense drop. But Swampert does beat DDtar ok I guess. So long as Swampert is at full or nearly full health and Crunch doesn't get the defense drop, you'll be fine. And yes, EQ is a clean 2HKO on standard Tyranitars.
Good to know someone else noted that
JRC's post on ~Wobbufett~'s post helped me out a lot, you should look for it, it's really helpful for team building.
Yay!
The first flaw of this team is that in the team building process, you said you added Scizor into the team because it would check Tyranitar, Lucario, and other Scizor, but isn't able to do that. (Tutor note: Scizor won't counter Choice Band Tyranitar because is OHKO by a Stone Edge after Stealth Rock and won't check Dragon Dance Tyranitar because most of them use a Babiri Berry.) (Btw, you used my Scizor spread with no Spe.) Gliscor is. Gliscor will counter Lucario and check Choice Band and Dragon Dance Tyranitar. Scizor will be left for later. Use it over Scizor. This Gliscor:
Gliscor @ Leftovers
Sand Veil
244 Hp/ 12 Att/ 172 Def/ 80 Spe
- Earthquake
- Fire Fang
- Stone Edge
- Roost
The moves may seem self-explanatory but they all have a purpose. Earthquake is your most powerful attack and main attack. Fire Fang is used to 2HKO Scizor and to hit Celebi. Stone Edge will be used against Flying-types, more specefically Zapdos. Now, the Ev's were made by my friend Gs and I edited them slightly to reach it's full purpose. The Hp reaches an optimal Leftovers recovery point and in conjuction with the Def investment, Gliscor will always win against Choice Band Tyranitar. The Att Ev's are chosen because they perfectly 2HKO 176 HP standard Tyranitar. The Spe Ev's aim to outrun 36 Spe Celebi and Zapdos both standard and both aiming to outrun Jolly max Spe Tyranitar. Therefore, you outrun all unboosted Tyranitar. Against Dragon Dance Tyranitar is more tricky but you still win 66% of the time.
Drop Blissey. She won't be needed here, trust me. Now add a Choice Band Tyranitar into your team. Now, all the Electric-types you listed are covered. Tyranitar detroys all four of them and takes their Electric-type attacks aimed Vaporeon like a champ due to resitsance and the Sp.D boost from his own Sandstorm. Choice Band Tyranitar also gets rid of Celebi. Use this set:
Tyranitar @ Choice Band
Sandstream
Adamant nature (+Att, -Sp.A)
176 Hp/240 Att/ 92 Spe
- Stone Edge
- Crunch
- Pursuit
- Earthquake
I chose this Tyranitar spread because is bulky but doesn't forgo any Attack. The Spe is set to outspeed the slower Steel-types, like Skarmory so you can use Stone Edge before they Roost. I chosed Earthquale in the last slot to take care of Heatran.
Move 36 Sp.A Ev's to Spe, on Celebi. This will allow Celebi to outspeed max Spe Tyranitar and still keep some extra Sp.D Ev's.
Use Return on Vaporeon. Quick Attack without STAB isn't worth it.
I'm sorry it was so slow. Is that I fell asleep as I said before.