Just got the old HeartGold out and started playing again. Will eventually have this team:

Yanmega

tinted lens
leftovers
hypnosis, dream eater, bug buzz, shadow ball

Yanmega is able to learn my favourite combo, Hypnosis and Dream Eater. I like the bug element too and the high sp. attack makes the (recovering) Dream Eater an unbelievable move! Combined with leftovers, this Yanmega is all recovering and powerful... Swapped Guardevoir out for Yanmega.

Houndoom

flash fire
charcoal
dark pulse, toxic, fire blast, flamethrower

I like Houndoom. He gets STAB for 3 of his 4 moves and with his high sp. attack he is sheer brute force... Was a choice between fire blast, flamethrower and heatwave but i chose the first 2 for overall power and PP... Was either Houndoom or Typhlosion...

Marowak

rock head
thick club
earthquake, bonemerang, double edge, stone edge

Marowak with thick club is savage. Combined with Earthquake it is lethal! The Rock Head ability lets me use Double Edge without worrying and, like i said, with Thick Club its physical attacks are unreal! total physical power!

Victreebel

chlorophyll
heat rock
solar beam, sunny day, synthesis, leaf blade

Iv always been a fan of Sunny Day and Solar Beam (as i have Rainy Day and Thunder). Victreebel is the best pokemon i could think of that learnt both and coupled with the Heat Rock it lasts longer. If i get into trouble, Synthesis will be improved by the Sunny Day too. Leaf Blade is in there just for an all out powerful, physical move.

Flygon

levitate
Dragon Fang
fly, dragon claw, draco meteor, Roost

Iv always like Flygon since he was my first (and only) shiny Pokemon iv found. Fly is convenient and a move type im missing so far so Flygon really is my flying Pokemon. I also like that he is a Dragon type so could really be handy with Dragon type moves.

Starmie

natural cure
mystic water
hydro pump, thunderbolt, surf, ice beam

My savior! Starmie is in my team because i needed Ice, Water and Electric moves. I used to have Lanturn in my team and he done really well but iv now changed to Starmie for the extra power. Did try and accomodate Recovder into his moveset but it just wouldnt fit... I would have to get rid of either Hydro Pump or Surf and i dont know if i can...

Views and opinions please!!