No, Golduck is not capable of learning or knowing a 1-hit knocked out attack in Pokémon Sapphire.
latious can learn
its in the house in mauville city at the right of the shop.
There is no "best" Pokemon for skill. The pokeathelon stats vary for each individual Pokemon. Feed it the Skill April juice and that will boost the skill stat
Learning a new skill.
You must have Pokemon Emerald, Pokemon Ruby, Pokemon Sapphire, money, skill and knowledge. You also need friends help to trade and get the Pokedex full. After that, just ask to trade back. Also try your best to find all of the Pokemon in the version you have. Try and concentrate on finishing the Pokedex.
you get Pokemon with skill. Psychics work well. But if you suck then its not my problem
Gray means you already know that skill green means you can learn the skill and red means your skill level is to low to learn the skill at that time.
algebra is good to learn because it will follow you onto college and it is a skill most jobs need
have three pokemon u want, but u must have these three pokemon: Alakazam Shedinja Sableye The reason is because in a double battle, make sure alakazam knows move called skill swap. First use skill swap on shedinja. Then, if shedinja faints, use skill swap again with sableye. Your sableye now has the wonder guard ability for that battle, and because sableye has no weaknesses, your sbleye is now indestructable. For the three remainding slots, i rcommend Swampert, Gyrados, and Slaking.
A good 'skill' to learn and have would be a conscience.
hyper beam
TM48 Skill Swap can be found on Mt. Pyre in Pokémon Sapphire Version.