Ash's attack for his Oaked/Training Pokemon(I am just writing attacks wich they don't know and I want/thinkthey can learn):
Bulbasaur: Seed Bomb, Sludge Bomb
Charizard: Areal Ace
Squirtle: Aqua Tail
Kingler: Metal Claw
Muk: Gunk Shot, Secret Power
Taurous: Rage
Snorlax: Rollout
Heracross: Areal Ace, Brick Break
I will later finish what I think for the other of his Pokemon...
Now continuing with the Oaked Pokemon:
Bayleef: Magical Leaf
Cindaquil: Flame Wheel, Lava Plume
Totodile(Hopefully Feraligatr later in BF saga): Iron Tail, Water Pulse
Noctowl: Areal Ace
Donphan: Magnitude, Dig
Swellow: Pluck, Air Slash
Sceptile: Absorb, Brick Break, Giga Drain
Corpish: Night Slash
Torkoal: Fire Spin
Glalie: Sheer Cold, Shadow Ball