Hey guys what would you think is the single, most disadvantageous move in the history of pokemon? You can reply "Splash" obviously, but i'm looking for a deeper meaning 
You can list one or 1 of each type that come to mind and adding an explanation why would be appreciated.
These are my WORST for each type
Normal: Hyper Beam
Reason: Ok there are a few reasons for my choice. Firstly, Hyper beam is a SPECIAL ATTACK. There is not ONE uu or even bl pokemon that is suited to using the normal type special attack. OK so you say that it has 120 base damage. But what about Giga Impact? It is physical and IS completely suited for a normal pokemon. (BTW im describing the worst move of each type that a pokemon of each type could use.)
Fire: Fire Spin
Reason: This move is just stupid. I don't even know why pokemon even put this move in the game. It has really weak damage and even has low accuracy.
Water: Clamp
Reason: Water has basically no physical attacking pokemon excluding the crabby and its evolution, the corphish and its evolution, and MAYBE a shelder or cloyster depending on your point of view. Face it: more than 95% of all water moves are special, signifying that more than 95% of all water pokemon are special. It also has incredibly weak base damage.
Grass: can't really think of a useless move for this type...
Electric: can't think of one for this either...
Ground: Mud Sport
Reason: Mud sport is pretty much like wasting a turn. Ground pokemon can't even be hit by electric moves in the first place, so what's the point? O right, he's gonna switch to a gyarados next so hes weakening electric moves. So what? Gyarados can't stand up to any electric move, mud sport or not.
Rock: Can't really find one really bad.
Dark: Snatch
Reason: This move is very hard to use. It may actually be fine if the user knows how to use it well. The problem is that nobody will be able to guess exactly what the opponent will use next, even if its a computer. So this move may fail more than once and waste turns.
Ghost: Lick
Reason: This move may have a fairly high chance of paralyzing the opponent, but its base damage is far too low to be considered good. Astonish has higher base damage and could flinch the opponent at the same rate.
Dragon: Dragon Rage
Reason: What's the point of constantly doing 40 damage? Dragon pokemon aren't weak. Unless they are up against something like a fully trained shuckle or another wall-type pokemon, they will most likely be able to inflict at least more than 40 damage with any stabbed move that they will have.
Psychic: Future Sight
OK so its an 80 base power move. But what would be the point of launching an attack 2 turns later, which they could expect, and using something like extrasensory which has the same base power and accuracy but attacks the moment its used. Future sight is an overrated version of extrasensory.
Bug: Pin missile or Fury Cutter
Reason: Pin missile is extremely weak with a base damage of 14. It also has bad accuracy. Fury Cutter starts weak, and usually, the pokemon cannot get more than 2-3 fury cutters off before it is killed. It's starting damage is too low and accuracy is just fair.
Flying: Defog
This move is pointless. Lowering evasion would be better off done with another pokemon. Flying pokemon also have attacks that have high power AND high accuracy, which renders the move defog useless.
Poison: Poison Gas
Reason: Poison gas is easily outclassed by toxic which kills in 8 turns and has a much higher accuracy. No other comments necessary.
Fighting: Vacuum Wave
Even with the added "go first" ability that this move has, it is unsuited as most fighting types are physical and this is a special move. Also, this move has a low base power of 40.
Ice: Can't really think of a bad one.
So there you have it, my opinion of the worst moves of each type
You can list one or 1 of each type that come to mind and adding an explanation why would be appreciated. These are my WORST for each type
Normal: Hyper Beam
Reason: Ok there are a few reasons for my choice. Firstly, Hyper beam is a SPECIAL ATTACK. There is not ONE uu or even bl pokemon that is suited to using the normal type special attack. OK so you say that it has 120 base damage. But what about Giga Impact? It is physical and IS completely suited for a normal pokemon. (BTW im describing the worst move of each type that a pokemon of each type could use.)
Fire: Fire Spin
Reason: This move is just stupid. I don't even know why pokemon even put this move in the game. It has really weak damage and even has low accuracy.
Water: Clamp
Reason: Water has basically no physical attacking pokemon excluding the crabby and its evolution, the corphish and its evolution, and MAYBE a shelder or cloyster depending on your point of view. Face it: more than 95% of all water moves are special, signifying that more than 95% of all water pokemon are special. It also has incredibly weak base damage.
Grass: can't really think of a useless move for this type...
Electric: can't think of one for this either...
Ground: Mud Sport
Reason: Mud sport is pretty much like wasting a turn. Ground pokemon can't even be hit by electric moves in the first place, so what's the point? O right, he's gonna switch to a gyarados next so hes weakening electric moves. So what? Gyarados can't stand up to any electric move, mud sport or not.
Rock: Can't really find one really bad.
Dark: Snatch
Reason: This move is very hard to use. It may actually be fine if the user knows how to use it well. The problem is that nobody will be able to guess exactly what the opponent will use next, even if its a computer. So this move may fail more than once and waste turns.
Ghost: Lick
Reason: This move may have a fairly high chance of paralyzing the opponent, but its base damage is far too low to be considered good. Astonish has higher base damage and could flinch the opponent at the same rate.
Dragon: Dragon Rage
Reason: What's the point of constantly doing 40 damage? Dragon pokemon aren't weak. Unless they are up against something like a fully trained shuckle or another wall-type pokemon, they will most likely be able to inflict at least more than 40 damage with any stabbed move that they will have.
Psychic: Future Sight
OK so its an 80 base power move. But what would be the point of launching an attack 2 turns later, which they could expect, and using something like extrasensory which has the same base power and accuracy but attacks the moment its used. Future sight is an overrated version of extrasensory.
Bug: Pin missile or Fury Cutter
Reason: Pin missile is extremely weak with a base damage of 14. It also has bad accuracy. Fury Cutter starts weak, and usually, the pokemon cannot get more than 2-3 fury cutters off before it is killed. It's starting damage is too low and accuracy is just fair.
Flying: Defog
This move is pointless. Lowering evasion would be better off done with another pokemon. Flying pokemon also have attacks that have high power AND high accuracy, which renders the move defog useless.
Poison: Poison Gas
Reason: Poison gas is easily outclassed by toxic which kills in 8 turns and has a much higher accuracy. No other comments necessary.
Fighting: Vacuum Wave
Even with the added "go first" ability that this move has, it is unsuited as most fighting types are physical and this is a special move. Also, this move has a low base power of 40.
Ice: Can't really think of a bad one.
So there you have it, my opinion of the worst moves of each type