Simple RAW 3

[Millstone85]

Q602 If I'm understanding it right, if a bugbear uses their long-limbed feature to grapple a creature on their turn, they have to move within 5 feet of it by the end of their turn to keep the hold or else that counts as an effect removing a grapplee from the grappler's reach, right?

A602 No. The grappled condition doesn’t specify that reach is part of it, nor does long-limbed specify that the grappled condition is removed if the bugbear isn’t within 5 feet.

R602 I disagree with this answer. The grappled condition does care about reach, and I believe No-brains is correct.

I tried to collect all the relevant RAW:

When you want to grab a creature or wrestle with it, you can use the Attack action to make a special melee attack, a grapple. If you're able to make multiple attacks with the Attack action, this attack replaces one of them. The target of your grapple must be no more than one size larger than you, and it must be within your reach.

Most creatures have a 5-foot reach and can thus attack targets within 5 feet of them when making a melee attack. Certain creatures (typically those larger than Medium) have melee attacks with a greater reach than 5 feet, as noted in their descriptions.

The condition also ends if an effect removes the grappled creature from the reach of the grappler or grappling effect, such as when a creature is hurled away by the thunderwave spell.

Size. Bugbears are between 6 and 8 feet tall and weigh between 250 and 350 pounds. Your size is Medium.

Long-Limbed. When you make a melee attack on your turn, your reach for it is 5 feet greater than normal.

[Red Bear]

Q604 What happens if I dimsiss with dispel evil and good a druid wild shaped into an elemental?

[Dualswinger]

Q605.

Tensers transformation grants advantage on simple and martial weapon attacks. Does this in anyway extend to Natural Weapons?

[leogobsin]

Q604 What happens if I dimsiss with dispel evil and good a druid wild shaped into an elemental?

A604 Assuming you're on the prime material plane, nothing. The spell description states "The creature must succeed on a Charisma saving throw or be sent back to its home plane (if it isn't there already)", then gives specific exceptions for undead and fey. A druid wildshaped into an elemental is already on its home plane, and isn't a fey or undead, so none of the possible spells effects apply.

Q605.

Tensers transformation grants advantage on simple and martial weapon attacks. Does this in anyway extend to Natural Weapons?

A605 No. Natural weapons aren't simple or martial weapons, they're an entirely separate category.

[Red Bear]

Q606 can you choose to do less damage?
Q606a can you choose to do for example 1d6 instead of 2d6 with a greatsword?
Q606b can you choose to do for example 1d10 instead of 2d10 with a firebolt cantrip if you are level 5?
Q606c can you choose to only cast one eldritch blast instead of 2?

[PhoenixPhyre]

Q606 can you choose to do less damage?
Q606a can you choose to do for example 1d6 instead of 2d6 with a greatsword?
Q606b can you choose to do for example 1d10 instead of 2d10 with a firebolt cantrip if you are level 5?
Q606c can you choose to only cast one eldritch blast instead of 2?

A 606 No, without house-rules. Spells and abilities do what they say, nothing more and nothing less.

However, with a melee attack one can choose to knock the opponent unconscious instead of killing them (if you strike the final blow), no matter the damage done. No such exception exists for ranged attacks.

[Dualswinger]

Q607

Can a character make an attack action, benefitting from the duelling feat, before drawing (and then throwing) a dagger with a bonus action?

[leogobsin]

Q607

Can a character make an attack action, benefitting from the duelling feat, before drawing (and then throwing) a dagger with a bonus action?

I believe so, yes. In fact, I'm fairly sure the thrown dagger would also benefit from dueling, as it would be the only weapon you're wielding when you throw it.

[NecessaryWeevil]

A607 - Contention

I believe so, yes. In fact, I'm fairly sure the thrown dagger would also benefit from dueling, as it would be the only weapon you're wielding when you throw it.

Assuming you're referring to the dueling fighting style, you'd have to drop or sheathe the weapon you used for your first attack if you want to get the bonus on your thrown dagger attack. Otherwise you're wielding two weapons.

I'd also question whether a thrown dagger counts as a melee weapon.

When you are wielding a melee weapon in one hand and no other Weapons, you gain a +2 bonus to damage rolls with that weapon.

[leogobsin]

A607 - Contention
A607-Cont.

Assuming you're referring to the dueling fighting style, you'd have to drop or sheathe the weapon you used for your first attack if you want to get the bonus on your thrown dagger attack. Otherwise you're wielding two weapons.

Yep, my bad, wasn't fully thinking through the situation described.

I'd also question whether a thrown dagger counts as a melee weapon.

According to Crawford, it does. https://www.sageadvice.eu/2015/11/03...-melee-weapon/

[Lombra]

Q608

Can you two-weapon-fight with improvised weapons with the feat Dual Wielder? Specifically, improvised weapons that don't resemble actual weapons (stools for example)

[Arial Black]

Yep, my bad, wasn't fully thinking through the situation described.

According to Crawford, it does. https://www.sageadvice.eu/2015/11/03...-melee-weapon/

The thrown dagger does not get the +2 from Duelling.

Yes it is a 'melee weapon' as JC indicates.

But, crucially, no it is not 'held in one hand' when it hits; it's not held in any hand at all if it was thrown.

[Arial Black]

Q608

Can you two-weapon-fight with improvised weapons with the feat Dual Wielder? Specifically, improvised weapons that don't resemble actual weapons (stools for example)

No. Due to the wording of the TWF rules, you must make the attacks with 'weapons'; both the initial attack which generates the bonus action, and the attack made with that bonus action.

By definition, 'improvised weapons' are not 'weapons'.

[Arkhios]

No. Due to the wording of the TWF rules, you must make the attacks with 'weapons'; both the initial attack which generates the bonus action, and the attack made with that bonus action.

By definition, 'improvised weapons' are not 'weapons'.

A 608 addendum: By strict RAW, Arial Black is correct. However, it doesn't break anything if you were to allow two-weapon fighting with an improvised weapon because they are used as weapons, and otherwise follow same rules as any weapon without special properties. An improvised weapon isn't finesse, heavy, light, versatile, etc. Improvised Weapon is treated as a weapon in all respects except its actual type. (So, you will need Dual Wielder to use two-weapon fighting with an improvised weapon, and you must use Strength for attack and damage rolls, AND without proficiency, your attacks are quite bad with them anyway).