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>Floating disc
Floating Disk has a few unique features about it.
First is that it has no mass it is simply a force capable of carrying up to 500lb (2224.11 Newtons).
Secondly the disk tries to keep you within 20ft at all times. It's pathing is dumb however, so it can get stuck on the other side of a 10ft deep trench.
>Mending
This allows for quick repairs literally on the fly.
>Magic Initiate feat
In a DnD world, it's not unrealistic to be able to train some npcs to use magic. This training will give them the Magic Initiate feat allowing them to learn two cantrips and a level 1 spell.
Gather your band of loyal slaves workers and have them dig a trench 10 ft deep. Place your magic initiates (MI's) on one side of the trench and have them cast Floating Disc on the other side. Now simply brace a 25ft metal pole on the disc and attach your MI's to the end of said pole. Once the holding mechanism is put into place and the MI's are suspended on the end of the pole, have your volunteers fill in the trench. Once the trench is <10ft deep the floating disc will be able to pass over it seeking the MI who cast it. Because the MI is braced 25ft away from the disc, the disc will be constantly accelerating trying to get within the 20ft range.
This means you have a 25ft metal pole with a humanoid attached to the end with near infinite acceleration, accelerating for roughly just under an hour. You now have a suicidal wannabe-wizard railgun ready to be unleashed on whatever is stupid enough to stand in front of it.
To remedy the projectile breaking down mid flight, have your MI cast Mending on it mid flight to mitigate the damage.
Calculating impact force, depending on travel time, air density, geography, and projectile mass the impacting force of the projectile can vary greatly. However, you have a projectile with nearly infinite acceleration, only limited by terminal velocity.
Enjoy watching your enemies castle crumble when a 25ft steel rod flies through the foundation
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That can't be right. Would it just not stop?
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>>54817816
If the disk is capable of infinite speed, why not just stand close to the target and pummel it to death with your relativistic disk?
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>>54818003
because its over complicated version of the Peasant railgun
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>>54818044
And besides if you can cast Unseen Servant x20 or something, you can have an Unseen Peasant Railgun, basically.
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>>54817816
Your mistake is that you think the disk will continue to accellerate. It wont. It will reach a top speed thats probably only landspeed 30 or a little faster, because its designed to follow a walking old fart.
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>>54817816
You can actually do the physics and see what a constant 2.2kN force will get a human body up to in atmosphere. It's not really that fast.
More importantly, you'd have the MI constantly being slammed against the ground every round, and a 1st level nobody is going to die within a few rounds of that. Mending takes a long time to cast, and if you're throwing this metal contraption with any damaging speed, it too will break. You'll get barely any distance.
Also important to note is that you have no way to steer it and are in constant ground contact, so you'll hit bumps and go off course.
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>>54821754
Oh, and I forgot. You'll actually get a lot less speed than air resistance estimates would imply because you have ground contact too and so have friction there which is a lot worse, and that friction will cause torque and you'll risk your MIssile faceplanting and flipping out of control or being crushed by 2.2kN of force.
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>>54817816
>the disc will be constantly accelerating
Incorrect.
Pretty sure you used "accelerating" incorrectly as well.
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