Are extra effects considered weapon damage on a sword of sharpness?

The Sword of Sharpness says:

When you attack an object with this magic sword and hit, maximize your weapon damage dice against the target.

Do some other effects (language use is intentional) add on to this, or is it only the weapon’s damage based on the weapon chart in the Player’s Handbook?

Examples:

  • Are the rogue’s Sneak Attack damage dice maximized?
  • Is the Bugbear’s extra damage die from its Brute trait maximized?
  • If I customize the sword to do extra cold or fire damage (based on a die roll), are those damage dice maximized?

Can a Bladesinger Wizard cast Shillelagh, Magic Stone, or Mending with their Extra Attack feature?

The Bladesigner Wizard’s Extra Attack feature reads:

You can attack twice, instead of once, whenever you take the Attack action on your turn. Moreover, you can cast one of your cantrips in place of one of those attacks.

Notably, all but three cantrips have a casting time of 1 Action. Two cantrips, shillelagh and magic stone, have a casting time of 1 Bonus Action, and the cantrip mending has a casting time of 1 minute.

Can these cantrips be cast with the Bladesinger’s Extra Attack feature, despite not having casting times of 1 Action? And particular to mending, does it take effect immediately, or does it still take a minute to complete casting?

(Nevermind how our Wizard learned shillelagh or magic stone, perhaps they took a 1 level dip into druid when they went hiking during a gap year in their studies.)

How does the altered Extra Attack feature of the Bladesinger (Tasha’s Cauldron version) interect with the Eldritch Knight Fighter’s War Magic feature?

The Extra Attack feature of the Bladesinger allows you to replace one of your weapon attacks with casting a cantrip. The Eldritch Knight’s War Magic feature checks if you have "use[d] your action to cast a cantrip." Technically, you have used your action to cast a cantrip, or at least part of your action. Can a Eldritch Knight 7 / Bladesinger Wizard 6 make a weapon attack and cast a cantrip with Bladesinger’s Extra Attack and then make a weapon attack as a bonus action with Eldritch Knight’s War Magic?

Does Hexblade’s Curse extra damage affect every die rolled? [duplicate]

The relevant part of Hexblade’s Curse states (XGtE p.55):

Starting at 1st level, you gain the ability to place a baleful curse on someone. As a bonus action, choose one creature you can see within 30 feet of you. The target is cursed for 1 minute. The curse ends early if the target dies, you die, or you are incapacitated. Until the curse ends, you gain the following benefits:

  • You gain a bonus to damage rolls against the cursed target. The bonus equals your proficiency bonus.
  • […]

Typically when features add extra damage they clarify that the extra damage only applies to one damage roll, or the added damage just applies to the damage as a whole, like the various cleric subclasses’ Potent Spellcasting:

Starting at 8th level, you add your wisdom modifier to the damage you deal with any cleric cantrip.

Or the Evocation Wizard’s Empowered Evocation (PHB p.117):

…you can add your Intelligence modifier to one damage roll of any wizard evocation spell you cast.

Does this mean the wording of the Hexblade’s Curse would apply to all of the dice rolled for the attack? If when the warlock gains Pact of the Blade at 3rd level, could they pick a great sword as there pact weapon, which deals 2d6 damage, and add their proficiency bonus twice to the damage?

How does the Extra Attack class feature impact Two-Weapon Fighting?

A level 11 Fighter makes 3 attacks per Attack action as per:

Extra Attack

Beginning at 11th level, you can attack three times, instead of twice, whenever you take the Attack action on your turn.

According to Players’ Handbook, any character can attack with both hands:

Two-Weapon Fighting

When you take the Attack action and attack with a light melee weapon that you’re holding in one hand, you can use a bonus action to attack with a different light melee weapon that you’re holding in the other hand. You don’t add your ability modifier to the damage of the bonus attack, unless that modifier is negative.

If a level 11 Fighter is brandishing a light weapon in each hand, how many attacks do they make per turn?

4: 3 from the Attack action + 1 from the bonus action?

Or 6: 3 from the Attack action + 3 from the Bonus action?

Can a Kensei monk spend a bonus action to use the Kensei’s Shot feature after they make an attack roll, and still do the extra damage on that attack?

The Way of the Kensei monk’s Path of the Kensei feature grants several benefits, including Kensei’s Shot. The wording of Kensei’s Shot is as follows (Xanathar’s Guide to Everything, p. 34):

You can use a bonus action on your turn to make your ranged attacks with a kensei weapon more deadly. When you do so, any target you hit with a ranged attack using a kensei weapon takes an extra 1d4 damage of the weapon’s type. You retain this benefit until the end of the current turn.

Can you choose to spend the bonus action to use Kensei’s Shot after rolling to hit, and still gain the extra damage on the attack you just made? Or do you have to declare that you’re using Kensei’s Shot before you make the attack roll?

Can the Soulknife’s psychic blades be be used with extra attack as a thrown weapon?

The Soulknife (p63 TCoE) has the ability to manifest Psychic Blades

Whenever you take the Attack action, you can manifest a psychic blade from your free hand and make the attack with that blade…

…The blade vanishes immediately after it hits or misses its target…

…After you attack with the blade, you can make a melee or ranged attack with a second psychic blade as a bonus action on the same turn, provided your other hand is free to create it. The damage die of this bonus attack is 1d4, instead of 1d6.

Can you attack multiple times with it as a thrown weapon, if you have the Extra attack or Haste spell feature?