Where do Mii Costumes fall in this equation?
Good question I wanted to add a cuphead boss to this game as a boss spere
Anyway to avoid double posting here is my raid boss
Plasm Wraith
Pikmin Series
Location: Formidable Oak
The Final Boss of Pikmin 3, this creature kidnapped Olimar and forced the protagonists to escape a hollow den while he tried to consume them in a giant amorphous indestructible form, with multitasking being a main point of Pikmin I think having the party in smash doing specific roles in an attempt to make this boss susceptible to attacks.
At first the party lands down into a den like maze cave, it's rather large and labyrith like and is filled with strange and hostile monsters such as red bulborbs and blowhogs, eventually the map shows a strange beacon that one of the characters needs to collect, after collect the Plasm Wraith forms into his mysterious lifeform, an indestructible blob that can create illusion and manipulate all the available elements in pikmin 3 (fire, water, crystal, electricity), as the character holding the beacon is the one being chased by the blob the other characters need to open gates and solve puzzles to lure the monster outside the den, as the cave is randomly generated you need to be very careful.
If the beast catches the player holding the beacon it will consume them and try to take it back to its home where it will be an automatic game over. You can escape by completing puzzles such as breaking doors or causing lights to grow platforms.
In this form the wraith has the following attacks:
Fire Puddle: If the player is captured it could protect itself by using one of many elemental attacks, this attack transforms it into a thick flaming puddle of red slime
Electric Feild: It become twice as fast and gains a stunning feild as defence for a short time
Enemy Spread: Concerts some of its body into enemies from the Pikmin Series such as Bulborbs and Snitchbugs, by defeating these enemies you can slow it down and recapture the beacon
When escaping the true fight begins, the plasm wraith is quite large at first and is impervious to direct attacks, instead you need to destroy the cores it launches to damage it. The following f cores are.
Fire Core: a core surrounded by the above mentioned fire slime, will explode if not taken out soon enough.
Water Core: a slowing circle of water surrounds this core, if your not quick the Wraith can convert it into suffocating slime
Crystal Core: A cube of crystal surrounds this, it's quite strong but is weak to smash attacks and explosives, using the spawning rock pikmin will break it quicker, the more its shattered the more damaged crystal shards it scatters.
Electric Core: This core hovers and realses a shocking stunning feild of electricity, projectiles are very recommended.
It can also realse various types of slime to impede the players
Sleep Slime: a silver slime that dissipates into a sleep gas
Smothering Slime: a gold slime that buries that characters
Pollen Slime: bronze slime that gives players flowers.
Finally it can fly in the air giving the following attacks:
Skewer: it uses it's two tentacles to snag a player and it needs to escape of risk heavy damage
Body slam: it slams into the ground causing a shock wave and tossing gold slime (smothering slime), if tiemd right you can stun it and realese a bunch of non elemental cores.
You defeat it by destroying and many cores as possible and then it disintegrates once and for all.
As the pikmin series is known for teamwork having the players gain a detailed goal rather than a straight battle would fit well as a raid boss.