Gen IV Lineup, need some help

[Kai Zayin]

I need a few critics on my current lvl 100 lineup. My current setup is as follows. (Thanks to Patchisou Yutohru for pointing me to the proper subforum.)

Kingdra-
Hydro Pump
Ice Beam
Dragon Pulse
(Haven't made up my mind yet)

Tyranitar-
Crunch
Stone Edge
Earthquake
(No idea could really use some advice here)

Exeggutor-
Leaf Storm
Sleep Powder
Dream Eater
Psychic

Heracross-
Close Combat
Megahorn
Earthquake (changeable fire counter)
Stone Edge (changeable flying counter)

Froslass-(all changeable, I don't have this one yet so haven't done any testing)
Crunch
Ice Beam
Blizzard
Shadow Ball

I want to get Charizard to complete the lineup, but I don't have the resources to get one for quite some time. In the meantime I would really love some suggestions for a 6th that fits well in my lineup. Thanks a ton in advance everyone.

 

[Dragonite's Wrath]

Teach Tyranitar Rock Slide. I have 3 charmander. PM an offer to me.
Frosslas shouldnt have Blizzard. Its not worth it. Have it know Psychic. Take advantage of STAB, and cover your weaknesses.

 

[Kai Zayin]

As I said earlier, I can't get a Charizard. I'd certainly love to get one from you, but I'm playing on the computer, so that I can play with some friends. Unfortunately that means that I can't trade with you.

 

[Aurafire]

Moving this to the in-game forum since this doesn't appear to be competitive.

 

[ᶰᵒᶥʳ]

I would have kingdra know at least one physical move instead of all special attack.
It has equal stats in both and will help get it more flexible.