What is the winged creature on the back of the Mordenkainen’s Tome of Foes book?

On the back of the Mordenkainen’s Tome of Foes book, there is a small creature with wings (I don’t know how to crop images, so here’s the entire image):

enter image description here

What is this creature? It doesn’t match any of the creatures in any of the monster manuals. It kind of looks like an imp, but it clearly isn’t one, and my only other guess is that maybe it’s some kind of homunculus?

Can a bard grant bardic inspiration to an unconscious creature?

The recipient of bardic inspiration must be able to hear the bard.

…choose one creature other than yourself within 60 feet of you who can hear you.

An unconscious creature is “unaware of its surroundings.”

An unconscious creature is incapacitated, can’t move or speak, and is unaware of its surroundings

Can creatures can still be affected subconsciously by things they hear while they are unconscious, despite being unaware of their surroundings?

Can I see a Hidden creature that is not obscured at all?

Here is the scenario: I am the GM, and one of my players is a Sharpshooter Rogue. He likes to hide as a bonus action to gain advantage on his rolls, which effectively nullifies the -5 attack bonus on Sharpshooter, and thus gives him an extra 17(10+2d6) damage every round. So at 4th level he’s doing ~25 damage a round, which seems awfully high.

What I’d like to do in future encounters is send in some monsters to root out this Rogue and prevent him from staying hidden (obviously not all the time, but enough to keep this player on his toes and give the tank and melee fighter something to do).

What I noticed in our last session was that for the most part, this Rogue is just Hiding behind cover, so like a rock or a tree. So, to me, if I send in a goblin to check the tree the Rogue just hid behind, then that goblin should be able to clearly see the Rogue just by walking around the tree. But the Rogue already beat the goblin’s passive Perception to hide in the first place(back when he couldn’t be seen so it made sense), and the rules I’ve seen imply that the goblin has to spend its action to Search for the ‘hiding’ Rogue.

Does this mean that the Rogue is essentially invisible until he decides to attack? And that he can Sneak Attack this goblin that’s staring right at him (or stab him normally if by some miracle the goblin succeeds on a Perception test)? Or am I looking at this all wrong?

And yeah, I know there are plenty of tangentially related Stealth questions, but this seems like a weird edge case that I haven’t seen addressed yet.

Can Gate draw a creature larger that 20 feet in every dimension through the portal it creates?

The gate spell says:

When you cast this spell, you can speak the name of a specific creature (a pseudonym, title, or nickname doesn’t work). If that creature is on a plane other than the one you are on, the portal opens in the named creature’s immediate vicinity and draws the creature through it to the nearest unoccupied space on your side of the portal…

However, the size of the summoned portal is

5 to 20 feet in diameter.

What happens if you speak the name of a creature larger than 20 feet in diameter?

Why are Lingering Injuries triggered when a creature drops to 0 hit points “but isn’t killed outright”?

The optional rule on p.272 of the DMG lists one of the triggers for Lingering Injuries as, “When (a creature) drops to 0 hit points but isn’t killed outright.” I am curious about why “but isn’t killed outright” was included in the description. This suggests that a creature that is killed outright and then raised with, say, Raise Dead, won’t have to worry about the possibility of missing limbs, whereas one who didn’t die straight away and later died from failed death saves won’t be so lucky. This doesn’t make sense to me. Shouldn’t that bullet simply say “When it drops to 0 hit points”?

Can a creature with a natural weapon that has reach make an attack through the Antilife Shell spell?

The Antilife Shell spell states:

An affected creature can cast spells or make attacks with ranged or reach weapons through the barrier.

This suggests that a human could attack with a glaive, since the weapon can reach the full 10 feet through the shell and strike the caster.

Does this include monsters whose natural weapons have a reach of 10 feet or greater? For example, a dragon’s tail attack which has a 15-foot reach or a T-Rex’s bite which has a 10-foot reach.

Which creature is depicted in this image?

In Xanathar’s Guide to Everything on page 59, there is an image of a war mage with some kind of creature on his shoulders. The creature looks vaguely like a Ki-Rin to me, but since Ki-Rins are creature size “huge”, I believe we can rule that out.

Either way, can anyone tell me what kind of creature is depicted here? I’m pretty sure it’s not a creature that has been released for 5th-edition so far, so experience with previous versions is probably required.

war mage with unidentified creature

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