Grainger
Explorer
I agree with the points made upthread. Your character is already trying to "kill an enemy quickly"! Why would he/she be trying to do it slowly? That implies he/she is missing on purpose, or hitting sub-optimal targets deliberately. That doesn't make any sense. The D&D combat system abstracts combatants' best attempts to hit into a die roll.
I'd also add that in 5e, you have to remember what damage is meant to represent. Damage (to hit points) doesn't mean you have physically injured them. It really means you have forced them to block or dodge because you did a good attack, or you did hit them, but it bounced off their armour. All this time, you are causing them fatigue and stress, but they are not physically harmed. It's only when a character or creature falls below half hit points that they start to take minor cuts and bruises. At 0hp, the target has actually taken a substantial wound. This is why PCs (above 0hp) are able to heal by taking a short rest and spending Hit Dice.
There might be specific reasons you might want to target a part of the enemy's body (maybe there's a vulnerable area on a monster you know about) but in normal circumstances, that's not how D&D combat is meant to work; combatants are already going for weak points by default.
Of course, you could tweak the system to allow called shots, and have a kind of rock/paper/scissors dynamic going on, based on what the two combatants are doing, but that would make the system fundamentally different - you'd have to cross reference what the two combatants are doing that round, and so on.
I'd also add that in 5e, you have to remember what damage is meant to represent. Damage (to hit points) doesn't mean you have physically injured them. It really means you have forced them to block or dodge because you did a good attack, or you did hit them, but it bounced off their armour. All this time, you are causing them fatigue and stress, but they are not physically harmed. It's only when a character or creature falls below half hit points that they start to take minor cuts and bruises. At 0hp, the target has actually taken a substantial wound. This is why PCs (above 0hp) are able to heal by taking a short rest and spending Hit Dice.
There might be specific reasons you might want to target a part of the enemy's body (maybe there's a vulnerable area on a monster you know about) but in normal circumstances, that's not how D&D combat is meant to work; combatants are already going for weak points by default.
Of course, you could tweak the system to allow called shots, and have a kind of rock/paper/scissors dynamic going on, based on what the two combatants are doing, but that would make the system fundamentally different - you'd have to cross reference what the two combatants are doing that round, and so on.