When do objects take damage from being inside the Whirlpool option of the Control Water spell?

The control water spell allows you to create a whirlpool which includes the following in its description:

[…] The first time each turn that an object enters the vortex, the object takes 2d8 bludgeoning damage; this damage occurs each round it remains in the vortex.

I understand that an object takes damage on any turn that it enters the vortex, even if it does so multiple times in a single round. But when exactly is “each round”; when does the re-occurring damage for remaining in the vortex actually happen; when does an object inside of a whirlpool actually take the 2d8 bludgeoning damage?

Note, that if they instead had said “each turn” then these objects would be taking damage multiple times per round. I hesitate a guess that some of the unusual wording here comes from the fact that objects don’t even have turns of their own so they couldn’t have used the wording they usually do for creatures.

Algorithm for mapping objects of list without mapping to itself?

I want to map objects of a list, to objects of that same list, randomly, without ever mapping any given object to itself.

So given a list of objects [a, b, c] valid maps would be, for example:

   a -> b,    b -> c,    c -> a 


   a -> c,    b -> a,    c -> b 

an invalid mapping would be:

   a -> a,    b -> c,    c -> b 

I just cannot figure out how to implement such an algorithm.

(This is for a small Secret Santa app that I am building where each person will be assigned to buy gift to one of the other participants.)

What can animated objects do in a fight?

Things affected by Animate Objects can be issued commands. When ordered to attack in combat, they will make a single melee attack. Grapple, Hold, Help, etc are not mentioned in the spell description.


  1. Can creatures made using this spell perform any other in-combat actions?
  2. If so, can the caster tell them (once) to keep repeating these actions?
  3. What are the limits to commands given during fight?


  • Can silk ropes grapple and drag away enemies?
  • Can ball bearings buzz around in enemies faces to distract them, as a help action?
  • Can a carpet be told to keep a caster (standing on it) away from the fray ?
  • Can a box flee and hide?
  • Can dolls in branches hold an action until an enemy is below them?
  • Can an object pour a potion in a character’s mouth?

Is there a difference between training with multiple objects in a single image and multiple objects in a different images?

I’m trying to generate data for my object detection network (which will be used for TensorFlow: ResNet).

What I’m currently curious about is this: if I have the same total amount of data (each data containing coordinates and class) is using an image with multiple objects better or would it be better to have single objects for each image?

For example, would it be better to have 5 images where each image has 10 objects (total of 50 data) or to have 50 images each with a single object (total of 50 data)?

(The numbers are for illustrative purposes only. I would be using a few thousands of data)