What ability is needed for anticipating enemy actions?

I have a character that has an uncanny ability to be able to anticipate the enemy and figure out what they will do. He can watch how they array themselves for battle and intuitively know what actions they will take. But I don’t want him to be infallible so I would like to roll against an ability.

What ability stat would be responsible?

I don’t think it is intelligence because it isn’t a matter of studying and learning something. It’s more like when you are crossing the road and you judge whether the gap is wide enough for you to get all the way across without being trapped in the middle.

For example, being able to tell whether they will try to flank you or whether they will create a diversion etc. Things you can just tell will happen BEFORE they happen so that you can organise your own side to be ready for it. When you watch a movie you can always tell what’s going to happen before the protagonist does.

The only one that seems likely is wisdom but that’s not what it is usually used for…

RAW and/or rules as interpreted, can a Glamour Bard use the Enthralling Performance ability while casting Motivational Speech?

Can the following two mechanics work together or are they mutually exclusive or require something else? I am the DM and both the player at my table and me don’t agree or understand if it’s possible to utilize Enthralling Performance in conjunction with the spell motivational speech.

Enthralling Performance (Glamour Bard ability)

Starting at 3rd level, you can charge your performance with seductive, fey magic.

If you perform for at least 1 minute, you can attempt to inspire wonder in your audience by singing, reciting a poem, or dancing. At the end of the performance, choose a number of humanoids within 60 feet of you who watched and listened to all of it, up to a number equal to your Charisma modifier (minimum of one). Each target must succeed on a Wisdom saving throw against your spell save DC or be charmed by you. While charmed in this way, the target idolizes you, it speaks glowingly of you to anyone who speaks to it, and it hinders anyone who opposes you, avoiding violence unless it was already inclined to fight on your behalf. This effect ends on a target after 1 hour, if it takes any damage, if you attack it, or if it witnesses you attacking or damaging any of its allies.

If a target succeeds on its saving throw, the target has no hint that you tried to charm it.

Once you use this feature, you can’t use it again until you finish a short or long rest.

Motivational Speech (Acquistions Incorporated, p.77)

3rd-level enchantment
Casting Time: 1 minute
Range: 60 feet
Components: V
Duration: 1 hour

You address allies, staff, or innocent bystanders to exhort and inspire them to greatness, whether they have anything to get excited about or not. Choose up to five creatures within range that can hear you. For the duration, each affected creature gains 5 temporary hit points and has advantage on Wisdom saving throws. If an affected creature is hit by an attack, it has advantage on the next attack roll it makes. Once an affected creature loses the temporary hit points granted by this spell, the spell ends for that creature.

At Higher Levels. At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the temporary hit points increase by 5 for each slot level above 3rd.

Are attack/damage modifiers recalculated for a druid in Wild Shape if its ability scores changed?

Are attack/damage bonuses recalculated if the ability scores are changed while in Wild Shape?

For example:

  1. I transform into a Giant Scorpion. My Str bonus is +2.
  2. A shadow drains my strength from 15 to 13. My Str bonus is now only +1.

Do I need to subtract 1 from my attack bonus and damage bonus when making attacks as the Giant Scorpion?

What creatures (if any) are immune to a Shadow’s strength drain ability?

Shadows are powerful / feared for their strength drain ability:

Strength Drain: Melee Weapon Attack: +4 to hit, reach 5ft., one creature. Hit: 9 (2d6 + 2) necrotic damage, and the target’s Strength score is reduced by 1d4. The target dies if this reduces its Strength to 0. […]

Monster Manual p. 269

Some creatures resist or are immune to necrotic damage, yet there seems to be no mention of creatures immune to death by strength loss. Logically a lich or shadow-dragon is not immune.

Concerns Ad Absurdum:

  • Someone dumps a large Bucket of Shadows on a lich. Lich dies.

  • Shadowdragon breath kills 100 townspeople. The newly minted (angry) shadows touch-drain this dragon and remove enough strength to kill it.

  • Orcus, The Lord of Undead, has a group of highly intelligent and successful shadows. In the Abyss he has a great ceremony where congratulates them all by shaking their shadowy hands. As such, the God of All Undead runs out of strength and is suddenly dead / goes out of existence.

The question (repeated): is any creature immune to [shadowy] strength drain?

Also: Previously found a stack-exchange post explaining how shadows can strength-drain ghosts RAW. Cannot find it now.

How big/little of an opening does a boggle need to use its Dimensional Rift ability?

I’m creating a giant wasp hive in the boughs of a tree in the Feywild, and it happens to have a boggle in it.

The upper sections of the hive have smaller, narrow, rigid, doorway-type openings everywhere that the boggle can use for dimension shifts.

My concern is about the bottom two sections of the hive. The doorway-type openings throughout the bottom two sections are ten or twenty feet square on those levels (so, 15’x20′ or 20’x20′ or whatever).

I’m concerned that these openings might be too big for the Boggle’s dimensional rifts. How large/small of an opening does a boggle need to use this ability?

By RAW, do monks include their ability modifier in the damage roll of their unarmed strikes?

By default, an unarmed strike deals 1 + Strength modifier damage. If a character has one or more levels in Monk, the class’s Martial Arts ability gives them the following benefit (among others):

You can roll a d4 in place of the normal damage of your unarmed strike

Now, is the “normal damage” of the unarmed strike the “1 + Strength modifier” (meaning that a level 1 monk deals just 1d4 damage with an unarmed strike regardless of ability scores) or is it just the “1” (meaning that a level 1 monk deals 1d4 + Strength modifier damage with an unarmed strike, with the option of using Dexterity instead of Strength)?

“Imbue Familiar with Spell Ability” and Share Spells

If a wizard/sorcerer employs the spell “Imbue Familiar with Spell Ability”, transfers spells on his familiar and has then his familiar cast a spell (e.g. Invisibility) on him, can his familiar share that spell (become invisible as well)?

In other words: does the Share Spell ability of the familiar still work although it is not the master that is casting the spell?

Share Spells

At the master’s option, he may have any spell … he casts on himself also affect his familiar.

I tend to say ´no´, but I´m not quite sure. One could argue that although the familiar functions as the caster it´s still the master´s spell that´s being cast and the master´s caster level that is being applied.

… The transferred spell’s variable characteristics (range, duration, area, and so on) function according to your level. … (Spell description “Imbue Familiar with Spell Ability”)

So, in a way, the master casts the spell (Invisibility in this case) – via his familiar – on himself. If you see it like this the familiar should then be able to share that spell.