D&D 5e: Do You Lose Items/Abilities When a Ready-Action Is NOT Triggered?

I have been reading searching for an answer to the question as to whether a spell slot is lost or not if readied but not triggered. The rules as written does not explicitly state this but that appears to be the consensus. Readying a spell with the exception of the concentration requirement, is no different than any other ready action.

With that in mind, i.e. you lose whatever was readied if it is not triggered, wouldn’t a cleric who readied their channeled divinity lose it if it failed to trigger? Shouldn’t archers lose an arrow? The thief ready to toss a dagger should lose the dagger. Druid lose their readied shape change. Barbarian lose their readied rage, etc.

Do the high-fashion armour clothings from Run & Gun that are tagged as ‘Newest Models’ lose armour rating over time?

Relevant rules snippets from Run & Gun, p. 59:

NEWEST MODEL

These items are the most recent incarnations of their corporate creators. That means they lose a little more when purchased as Lightly Worn, namely a 20 percent loss of Armor Rating (round adjusted Rating up) when buying older models of the clothes.

LIGHTLY WORN

The Lightly Worn option provides runners with a chance to buy some primo gear at a discount rate, with a few catches. Buying from the Lightly Worn section requires the character to have Armand as a contact with a Loyalty of at least 2. When gear is purchased Lightly Worn, the character gets a price discount of 25 percent, but they only get the Armor rating; they do not get any of the Features of the armor. The Lightly Worn feature can be bought off by having the piece of Armor refit. This requires an Armorer + Logic [Mental] (10, 1 hour) Extended Test and costs 10 percent of the original armor cost for each Feature the character is trying to have restored.

Do I need to refit a Newest Model every so often to avoid having it degrade into Lightly Worn and lose 20% of its armour rating? Or is Newest Model only meant to imply that purchasing the used version gets you an older model that isn’t as good, and applies the -20% armour rating in addition to Lightly Worn’s lack of armour features?

[ Football (American) ] Open Question : I feel terrible for Aaron Rodgers I couldn’t watch the NFC Championship game anymore. How could Packers lose so bad?

I’m an Ex Giants fan (bad management) and currently have no favorite teams, but I feel bad for Aaron Rodgers because he’s a nice guy and waited so long to return to the Superbowl. Packers played so well this year, how could 49ers beat them so badly?

Is there a way within the rules and options to selectively remove or lose a specific class feature?

A player selects a class or prestige class.

Then they realize that a specific class feature (Ex) doesn’t fit the character concept.

Ignoring it is insufficient, the player wishes to eliminate it.

Are there any existing rules, powers, spells, items, or other options in 3.x that would accomplish this? The retraining rules and rebuilding rules in PHB II don’t have an option for this.

Does the target of sanctuary lose the effect of the spell if they attack an illusion?

This question is inspired by on this question but is focused on the sanctuary spell instead of the rage feature.

The last line of the Sanctuary spell is –

If the warded creature makes an attack or casts a spell that affects an enemy creature, this spell ends.

I am slightly doubtful of the split-up of this sentence, does it mean any attack (thus even attacking an object like a door could end the spell) or only attacks against creatures end the spell ?

On a second note if the target of Sanctuary attacks an illusion does it count as attacking/affecting an enemy creature ?

Does my necromancy wizard lose hit points when he gives hit points to his homunculus?

In the 5e campaign I’m playing in, my necromancy wizard just got the spell create homunculus (from Xanathar’s Guide to Everything), and one of the features of that spell is:

Whenever you finish a long rest, you can spend up to half your Hit Dice if the homunculus is on the same plane of existence as you. When you do so, roll each die and add your Constitution modifier to it. Your hit point maximum is reduced by the total, and the homunculus’s hit point maximum and current hit points are both increased by it. This process can reduce you to no lower than 1 hit point, and the change to your and the homunculus’s hit points ends when you finish your next long rest. The reduction to your hit point maximum can’t be removed by any means before then, except by the homunculus’s death.

However, the Inured to Undeath feature from the wizard’s School of Necromancy states that my hit point maximum can’t be reduced.

Would this allow me to grant hit points to my homunculus without my necromancer losing hit points, or is it a DM call?

Does the Sky Stalker Ranger lose Favored Terrain for Level 2 or not?

In the Ranger Archetype Tableon the d20 site, it shows that a Sky Stalker ranger loses Level 2 Favored Terrain. On the Sky Stalker class page it does not state that it does, however it does state that the Level 2 Ranger Combat Style list adds the Monstrous Mount feat.

Does the Sky Stalker actually lose Favored Terrain for Level 2, or is this a typo on the site?