Welcome one and all to the Great Collection of Encounters! 

Lately I've seen a lot of people missing the old Encounter of the Week series. As it's been a while as the series does not appear to be continuing, I thought I'd try my hand at unofficially writing encounter for my fellow dndbeyond users! I'll write encounters, in a similar style to the old encounter of the week. Because I'm a slow writer, I won't be able to write one every week, but I'll try to post one somewhat regularly. 

If anyone else wants to help, feel free to post your own encounters here! I'll link any encounters written by me or others in this post so they ca be found easily. Hopefully we'll be able to amass a large collection of encounters here!

Bulette Hunt

Fortune Raiders

Drow Standoff

An Illusory Wager

I was never a fan of the EotW articles, but I recently ran one and it wasn't terribly bad!  Good luck.  

I have a few encounters that I'd like to share, if possible, and I look forwards to seeing what you create.

Bulette Hunt

This encounter, the first to join the great collection of encounters, is Bulette Hunt, a standalone encounter that you can drop into any D&D campaign almost anywhere, even to add to an already started combat encounter! bulettes can live almost anywhere and are constantly traveling, making this encounter very versatile. The basic premise is that a traveling bulette attacks the characters while hunting... But will the hunter become the hunted?

Combat Encounter: Bulette Hunt

An encounter for characters of 3rd-5th level.

This encounter can begin anywhere, with a bulette attacking the characters from below. If you’re playing a published adventure that uses random encounters, you can choose to use this encounter instead of any rolled random encounter. To begin the encounter, read or paraphrase the following:

Suddenly, the earth underneath the shudders as tremors pass through it. A massive beast burst out of the ground like a fish jumping from water, landing on all fours. It looks somewhere between a armadillo and a turtle, a four legged creature larger than a horse, covered in plates of armor-like carapace. At the ends of it's legs are large claws to burrow through the ground with. It rushes toward you, a deadly predator on the move. 

This creature is a bulette, hiding underneath the surface to ambush any prey that comes near. The bulette will single out a target (you can decide you determine randomly) and concentrate their attacks on that creature. The bulette will run away if reduced to half their hit points or less, and well escape with the targets body if they succeed in killing it. It will attempt to use it's burrowing speed effectively, coming to the surface to attack before burrowing underground again. 

Surprise. The hidden bulettetries to ambush its prey. Any character that has a passive Wisdom (Perception) score of 10 or lower is surprised by the bulette's appearance. 

Following the bulette. When the bulette tries escapes, either because it is reduced to less than half it's maximum health or because it killed it's target, it will leave a tunnel through the ground. The bulette will twist and turn, attempting to throw the characters off it's trail. If the characters are able to catch up with it, it will make a final stand in the tunnel.

Scaling this Encounter

This encounter is designed to test the combat capabilities of a party of 3rd-5th-level characters. However, guidance is also provided to help you scale the deadliness of this encounter up or down to suit stronger or weaker parties. 

Try these two variants to tailor this encounter to your party’s power level:

Elemetal Showdown

This encounter is suitable for a party of 11th-level characters.

In this version of the encounter, an earth elemental is attracted by he commotion. When the bulette escapes, two earth elementals enter the tunnel behind the players and attacks.

Arcane Controller

This encounter is suitable for a party of 15th-level characters.

In this version of the encounter,the bulette is being ordered to attack by an archmage. When the bulette flees, the archmage attacks.

That.  Is.  Incredible.  Really professional-looking stuff!  Well done.  You could become a member of the D&D Beyond Ultimate Article Taskforce!

Mine aren't nearly as well structured as HomebrewMindFlayer's, but here's an encounter I made before.

Fortune Raiders

This encounter, one of the Great Collection of Encounters, is Fortune Raiders, a standlone encounter that you can drop into any D&D campaign almost anywhere. The premise is that two unusual bandits are searching for prey to loot, and stumble upon the party.

Combat Encounter: Fortune Raiders
An encounter for characters of 7th-9th level

This encounter can take place anywhere, though it's recommended that it's in an open space. If you’re playing a published adventure that uses random encounters, you can choose to use this encounter instead of any rolled random encounter. To begin the encounter, read or paraphrase the following:

A strange whooshing noise comes from above, as if something were descending from above you. A moment later, a red half-dragon springs out from his nearby hiding spot, clad in metal armor that's backed with leather. He motions above you, drawing focus to a strange tentacled creature that hovers above you. Grinning in anticipation, the duo prepare to attack.

Two treasure hunters, a Common-speaking gauth named Gystrix (lawful evil, it/its) and a half-red dragon veteran named Straton (lawful evil, he/him), have formed an unlikely alliance. The pair hunt down travelers equipped with magic items and demand that they hand over their gold and arcane objects or be killed. If the travelers agree, Gystrix eats the magical items, and Straton brings the gold to his hoard, an urge brought on by his draconic half. 

Gystrix begins by descending from the sky above the party, while Straton moves out from behind the rock that had concealed him, closing the distance in a single turn. A character with 18 passive Perception or more notices the two as the party approaches the ambush point. Gystrix speaks to the group, demanding they surrender their gold, valuables, and magic items or perish. If the group agrees, Gystrix devours the magic greedily, while Straton takes out a bag of holding and collects the gold. If they refuse, the duo attacks.

Gystrix forces any players that are looking at it to make a save against its Stunning Gaze. On Straton's turn, he uses his breath weapon, trying to catch as many targets as possible, especially those stunned by Gystrix. The gauth, on the other hand, ascends into the air until it is 120 feet off the ground, shooting eye rays down at the party while Straton enters melee. Both of the pair are selfish and willing to do anything to survive. If Gystrix is reduced to 27 HP or less, it retreats while pleading for mercy. If Straton is reduced to 26 HP or less, he surrenders and offers up his bag of holding and the large sums of money in his lair. This, however, is a trap- Straton instead leads them to to the lair of his mother, a young red dragon. If coerced, Straton hands over a map to his actual hoard with dismay. The hoard has around 4,000 gp worth of coins, gems, and art. If the party kills Straton, they find the map on his body.

But will the duo return for revenge? Will Straton's mother get vengeance on the party for humiliating her son? And what dangerous guardians might await in the lair of Straton?

Drow Standoff

This encounter, part of the inimitable Great Collection of Encounters, is Drow Standoff, which can be tied into official adventures such as Waterdeep: Dungeon of the Mad Mage or Out of the Abyss, or even be used as a standalone encounter that can be dropped into most D&D Campaigns on many worlds. Drow Standoff can be played on its own as well as with its peers.  Drow are found primarily in the depths of the Underdark, but this encounter can take place anywhere with dim enough light. 

The basic premise of the encounter is the characters stumble upon a drow trading party carrying dangerous goods, and determine the intentions of these [monster]drow[monster] before something serious happens...

Combat Encounter: Drow Standoff

An encounter for characters of 5th-7th level

This encounter begins in the dark.  Ideal locations that this encounter could be in are the yawning chasms of the Underdark in Faerun, amid the sprawling streets of Rosohna in Exandria, on the continent of Xen'drik in Eberron, or similar locations in many other worlds.  If you’re playing a published adventure that uses random encounters, you can choose to use this encounter instead of any rolled random encounter, as long as the encounter takes place in dim light or darkness. To begin the encounter, read or paraphrase the following:

Ahead of you, the ominous sounds of scuffling feet and muffled talk reveal the presence of some other creature nearby.  Judging by the nature of the conversation, there is an argument going on between several people.  You hear a crash of something dropping to the ground.

Have the characters make a DC 13 Wisdom (Insight) or (Perception) check.  Any character that succeeds on this check realizes that the source of the commotion must be traders carrying magic items, based on the nature of the crashing and the talk. 

Characters that want to sneak up on the traders must make a DC 15 Dexterity (Stealth) check.  On a failure, the drow are alerted to the character's presence.  On a successful check, the drow continue their trek, coming within 30 feet of the adventurers.  Either way, the characters see a drow elite warrior walk past, followed by 5 drow traders, each carrying one of the following: boots of elvenkind, 5 arrows of slaying, an oathbow, a set of elven chainmail, and a spell scroll of minor illusion.  Most of these items are hideously battered, and the oathbow can only be shot once before it disintegrates.  Characters with a passive Perception of 17 or higher can also sense the traders look frightened of their leader.

Combat Encounter.  Should the drow have learnt of the character's presence, the drow elite warrior will immediately attack the characters, yelling curses such as "Murderers!" and "Surface Dwellers!".   The other drow hold back.  Should the drow elite warrior be killed, the remaining drow will attempt to flee for their lives.  Characters can stop the drow from running with a successful DC 17 Charisma (Persuasion) check.  

Work With the Drow.  If the drow are treat civilly by the characters, they reveal the fact that they were defectors to Eilistraee who were captured and forced into work by their drow matron mother.  They secretly appreciate the characters killing the drow elite warrior, though they are still afraid of pursuit from their fellow drow.  They are willing to give the characters the magic items they possess in exchange for temporary protection. 

Attack the Drow. If the characters attack the remaining drow, they don't put up much of a fight and try to surrender if they can.  They would prefer to die than be captured again by their fellow drow however.  They aren't as warm to the characters if they are attacked, and try to escape as soon as possible if captured.

The drow might prove useful allies to the characters, escorting them around the local lands.  They have been travelling them for all their lives, and know many secrets about it that the characters might not.    The magic items they can provide should be enough to cause the characters to assist the drow.

Regardless of the outcome of the encounter, the characters have made an enemy of a drow matron mother, something that should make them very cautious indeed...

This encounter is my first for the Great Collection of Encounters, and is as such highly volatile and not to be trusted.  I hope it is enjoyable, just the same!

- Yamana 

Quote from Yamana_Eajii >>

That.  Is.  Incredible.  Really professional-looking stuff!  Well done.  You could become a member of the D&D Beyond Ultimate Article Taskforce!

 Haha, thanks! I copy-and-pasted remoraz ruckus and then changed each section to something that would fit my encounter.

Nice encounters! I was thinking of starting a cult of "Bring Back Encounter of the Week", but I'm not sure if the DDB team would notice it...

Sorry about how bad mine is- I'll try to slowly convert it to the standard encounter format. If anyone likes it, I have several more that I can share.

I'm thinking of doing a "Tactical Encounters" one. You know, the one that used the battlemaps from Tactical Maps Reincarnated and the Icons of the Realms Monster Packs.

Since people upvoted my post, I'll just assume they want me to post another encounter...

An Illusory Wager
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This encounter, one of the Great Collection of Encounters, is An Illusory Wager, a standlone encounter that you can drop into any D&D campaign almost anywhere near civilization. Two con artists are performing a magic show, hoping to make money off of the crowd.

Combat Encounter: An Illusory Wager
An encounter for characters of 6th-8th level

This encounter can begin in any town or village, especially one that's not very used to magic. If you’re playing a published adventure that uses random encounters, you can choose to use this encounter instead of any rolled random encounter. To begin the encounter, read or paraphrase the following:

Just around the corner, the sounds of applause and muffled gasps can be heard. Two performers, an elf and tiefling, stand upon a stage, bowing dramatically. Before them is a crowd of people, cheering on the two. A housecat stares at you from one of the several cages on the elevated platform.

Quote from Thauraeln_The_Bold >>

Since people upvoted my post, I'll just assume they want me to post another encounter... 

 Thaur, you have 5 upvotes on this.  When are you going to start serving your ultimate mind master HBMF and posting a third awesome encounter!