Heavy PC falling on enemies [duplicate]

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  • How do I adjudicate a PC jumping onto another creature from a height? 1 answer
  • If an object or creature is dropped on a monster, how much damage does each of them take? 2 answers

I have a player who’s playing as a Tortle (DND 5e) and weighs over 500 lbs. This combined with the ability for Tortles to hide in their shell led to some interesting crushing-related activities, and I had to homebrew rules on the fly. Two specific scenarios came up:

  • From a standing position, the Tortle falls prone onto a smaller creature (eg a goblin). In this case, (the goblin only had like 6 hp) I gave the goblin a dex save against being crushed (instakill) as there’s no way any regular goblin could withstand 500 lbs.

  • From a ledge above a pinned enemy, the Tortle shelled up as it tipped over the edge and fell 30ft on top of the enemy. Again, I gave the enemy a dex save but this time I used the fall damage 3d6 as damage dealt and had the Tortle take half damage because they’re shelled up and not impacting a hard surface directly.

Questions:

  • Are there any rules for crush damage? Proven homebrew alternatives?

  • Are there rules for reducing fall damage by landing on someone else? Can the fall damage be transfered?

How do the War Caster feat and the Enemies Abound spell interact when an opportunity attack is provoked?

The enemies abound spell states:

[…] If an enemy provokes an opportunity attack from the affected creature, the creature must make that attack if it is able to […]

Xanathar’s Guide to Everything (page 155)

And the War Caster feat states:

[…] When a hostile creature’s movement provokes an opportunity attack from you, you can use your reaction to cast a spell at the creature, rather than making an opportunity attack […]

Player’s Handbook (page 170)

Note that a spell cast using War Caster is not considered an opportunity attack

I’m now unsure what happens when somebody is under the enemies abound spell but also has the War Caster feat and an opportunity attack is provoked. Does War Caster allow them to cast a spell or does the phrasing of enemies abound (especially “that attack”) require them to make the opportunity attack?

What are the mechanical benefits of Recall Knowledge on enemies?

In the comments for another question it was implied that that Monster Hunter (Ranger feat 1) was great, because it lets you identify a monster as a free action.

Knowing a monster’s AC, saves, resistances and vulnerabilities would indeed be great, but I could not find any such thing at Recall Knowledge’s description (CRB p239).

Is there any guideline on what I will learn, or is it completely up to the DM?

Can you Hide from some but not all enemies?

One of my players is asking if he can use Wall of Fire to block off the line of sight of enemy archers. The spell description says the wall is “opaque”, so this seems like a valid thing to try.

However, because this opaque wall would make both sides unseen from each other, the advantage and disadvantage would cancel out, and it would provide no immediate tactical benefit.

When you attack a target that you can’t see, you have disadvantage on the attack roll.

When a creature can’t see you, you have advantage on attack rolls against it. (PHB p. 193-4)

In the interest of trying to see if he can get any tactical benefits out of this – if he blocked the line of sight of the enemy archers in a group but not that group’s melee fighters, would he/others be able to take the Hide action from the archers even if the melee fighters could still see him?

If he can Hide in this way, that would mean the archers would no longer be able to know his precise position and would need to guess his square before making an attack.

Will enemies with Wizard spells have spellbooks a PC Wizard can learn from?

I’m aware that Wizards can learn spells from other spellbooks and scrolls they find, as long as they take the time and money to learn it. If there is an enemy, such as a Mage that is listed in the Hoard of the Dragon Queen supplement, that is listed as a caster and said to have Wizard Spells, does this mean we can assume they are a Wizard class and they have to have a spellbook? Is there any chance a PC Wizard could learn the spells off this defeated enemy?

Can I burn my enemies to ashes with fire spells?

People die and bodies burn to ashes when you burn them. I don’t want to see my enemies corpses burning, I want to see them turned to ashes immediately without resorting to disintegrate and similar spells, only instantaneous fire magic like Fireball, Firebrand or Meteor Swarm.

How much fire damage do I need to cause with my fire spells to make an alive enemy burn to ashes in an instant?

Is killing enough (reducing to -10 hp)? I suppose it isn’t. Then reduce to -30 hp? More? Less?

Are you your own enemy while under the effect of the Enemies Abound spell?

The enemies abound spell states:

[…] On a failed save, the target loses the ability to distinguish friend from foe, regarding all creatures it can see as enemies until the spell ends…

The sanctuary spell, with errata states:

[…] If the warded creature makes an attack, casts a spell that affects an enemy, or deals damage to another creature, this spell ends.

So what happens if you cast a spell on yourself such as false life, sleep, or cause fear?

Does the sanctuary spell end because you are your own enemy?
Or does the sanctuary spell not end because you are not your own enemy?

Does Area of Effect spells reveal hidden or invisible enemies?

As a question that came up from this discussion about whether Mind Blank foils all attempts to gain information about the target, can area of effect spells be used to reveal enemies?

In the example of a fireball spell. Fireball does not have to target an enemy directly; the caster can specify a specific location, and the fireball effects the entire area within the spells radius.

But would that fireball reveal to the caster any hidden or invisible enemies or things in that area?

Can you attack yourself while affected by the Enemies Abound spell?

The enemies abound spell (XGtE, p. 155) states:

[…] On a failed save, the target loses the ability to distinguish friend from foe, regarding all creatures it can see as enemies until the spell ends. Each time the target takes damage, it can repeat the saving throw, ending the effect on itself on a success.

Whenever the affected creature chooses another creature as a target, it must choose the target at random from among the creatures it can see within range of the attack, spell, or other ability it’s using.

Are you allowed to choose yourself as a target without needing to randomly select one?