Mini World Bosses - 5-10 Man World content

[SlamChicken]

Intro
These new bosses seek to increase the amount of world content in a natural way. This could be a fun feature for a new season or league. These bosses should scale up to the current max level, to stay relevant.

Design
Each Mini World Boss should be designed for a team of 5 to 10 players, and will be disabled if more than 15 people enter combat with it. 5-man groups should find the bosses quite difficult and somewhere between Mythic+ and Ascended, while 10-man groups should find it at around the same difficulty as Heroic raids.

High Risk
No Risk players can't have all the fun. In High Risk, Mini World Bosses will now drop triple the gear and a special mount, one for each boss. However, upon starting the fight, players have 30 seconds before a worldwide announcement is made informing everyone on the server of their presence, so be ready for a fight.

Respawn Timer
Mini World Bosses respawn every 2 hours.

Loot
Mini World Bosses will reward players who defeat them with both Raiders' Commendations and Mythic Coins, in addition to random Mythic Dungeon gear. Each boss drops 5 pieces of gear baseline. 5-manning a boss upgrades the gear to Mythic+ gear to compensate for the increased difficulty, starting at Mythic 3 and increasing by 2 whenever a new raid launches. 10-manning a boss causes it to drop an additional 3 pieces of Normal raid gear from the raid previous to the current one and have a 50% chance of dropping a piece of Heroic raid gear from the current raid.

[SlamChicken]

Dalaran Crater - Ordurus
##spoiler

##endspoilerMagically infused filth and runoff from the sewers of Dalaran, this disgusting monster poses little threat to the world, but glittering treasure can be seen beneath its surface. Will you slay the thing in the crater?

Abilities
Toxic Fumes: Constantly deals nature damage to everything in the crater.
Chemical Burn: When dealt magic damage, will spit out acid at each player in the crater, sundering their armor. 2 second cast. Can attack while casting. 30 second cooldown. Can be interrupted.
Split: Splits into two smaller copies of itself without this ability whose max health is equal to Ordurus' remaining health. 3 second cast. Begins casting at 35% health. Can't be interrupted
Ordurus Mount : Slime Serpent
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##endspoilerRide into battle on this disgusting parasite and leave disease and death in your wake.

Valley of the Watchers/Uldum - Henchman Gearing
##spoiler

##endspoilerA giant robot sent by Sicco Thermaplugg to tear down the gate to Uldum and retrieve forbidden artifacts to be used against the Gnomes. Players encounter it in a deactivated state and have to turn it back on via its power switch.

Abilities
Auto-Pummeler: Shocks all players within 30 yards who are casting, interrupting their spells for 1 second and dealing nature damage. Triggers every 15 seconds.
Aerial Armageddon: Radios in several gyrocopters that will spew flame across the sands. Keep on your toes to avoid being charred to a crisp. Starts 20 seconds into the fight and lasts indefinitely.
Mechanostomp: Knocks all players in melee range up high into the air, but gives them an additional 20% damage dealt for the next 15 seconds. Triggers every 1 minute.
Henchman Gearing Mount : Fluorescent Green Mechanostrider
##spoiler

##endspoilerThis long lost model was designed by Sicco Thermaplugg, the noxious grime of Gnomeregan should come off, eventually.

The Marshlands - Vine Hydra
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##endspoilerA strange flower can be found next to a random tree in the Marshlands. Tugging on it will summon the Vine Hydra, a fearsome plant monster that predates upon the local dinosaurs of Un'goro. This is a very challenging boss.

Abilities
Split: Every 10% health lost, will summon a spitter that will target and destroy any nearby totems, then casts Terrifying Howl.
Terrifying Howl: Sends all nearby non-elemental creatures and players into fear for 3 seconds. 1.5 second cast. Can't be interrupted.
Noxious Breath: Spews forth a cloud of acidic, poisonous and diseased gas from each of its heads respectively. Acid gas deals nature damage and sunders armor. Poisonous gas inflicts a stacking poison debuff. Diseased gas increases cast time, reduces movement speed, and will cause the inflicted player to sneeze, getting knocked back every 5 seconds. Instant cast. 40 second cooldown. Casts on cooldown.
Devour Dinosaur: Eats a nearby dinosaur corpse to instantly restore 10% health. 6 second cooldown.
Vine Hydra Mount : Captured Swampstalker
##spoiler

##endspoilerA Zandalari Riding Pterrordax was found caught in the Vine Hydra's tree, its dead master dangling from the reins, decapitated and rotting. Despite initial trepidation, it seems to have taken a liking to you.