Note: Wall of Text
Despite this being late for Halloween, I was inspired by the klaus boss to make this suggestion for a Halloween themed raid boss similarly.
Recommended Gear tier: Full Thulecite/nightmare gear
Jack (from: Jack-o lantern)
Summoning: at some point during autumn (usually year 2, can be spawned in year 1 by host's preference, can spawn outside of Halloween, and the season after being defeated) a pair of large "Fallen robes" will spawn.
Throughout Halloween, hostile mobs will drop "curses" (at a rate similar to the ornaments from mobs during winter feast) which will change the lights of a given object by red, blue, yellow, green, purple, or orange. These curses are also drops from graves, ghosts, nightmare monsters, clockworks, and the shadow clockworks/pieces outside the event. When applied to a jack-o-lantern, they instead increase the "curse" level of the jack-o-lantern, which when all 6 curses have been applied to the jack-o-lantern, it will turned into a "cursed jack-o-lantern" When a cursed jack-o-lantern is activated on the Fallen robes, a short animation plays, and the fight begins.
Concept appearance: a large robe clad being with a large Jack-o lantern for a head and a scythe in two hands.
HP: low-med compared to other raid bosses like dragon fly or queen bee. Kind of a "Glass Cannon"
Speed: Slow
The Fight: Similarly to Toadstool, this boss is best fought with some team mates, be it players or allied bunny-men/shadow puppets/pig men
Throughout the entire fight, he will "mark" players for his aggro for 30 seconds, signaled by a large pumpkin floating above the target's head. (Optional: Jack prioritizes aggro on the players/mobs that has done the most damage to him throughout the fight)
Attacks:
Phase 1:
Scythe swing: Jack swings his scythe in the spirit of Halloween, in a 66.6 degree cone, dealing ~60-75 damage to an unarmored player, he only activates this attack when the marked player (and the marked player only) is in melee range, making avoiding melee range important for the marked player
Pumpkin fling: Jack flings his head at the marked player, chasing them down for either ~17 seconds, or when he hits the target player, dealing large damage around 60-75 also. During this, he leaves his robes behind for the unmarked players to attack on throughout the fight. If the unmarked players do about 5%-10% of his max hp while downed, jack will disassemble into "pumpkin spirits" at which players can hit, with each point of damage to each dealing 2-4x damage taken against jack when they re-assemble after 13 seconds.
In between markings, Jack may use this attack:
Shadow mist: This is a more "interesting" attack, with the boss shrouding the area in a "mist" where all placed light (i.e, fire pits, campfires) are immediately put out and all natural light is out (excluding head or hand held lights like mining hats or torches) for a medium-long length of time. This acts like normal darkness from the game, but: all lights strength have been halved, light producing item's durability go down at a 2x speed (torches at a 4x rate, Moggles excluded entirely from the degen) and the night monster doesn't attack. However, jack instead marks players and attacks them, with him focusing on players with the least amount of light, Moggles users/Werebeaver Woodies are ignored entirely. Players who are equipped with lights can attack a jack trying to snuff out a player (Moggles/Werebeaver Woodie users especially are advantaged) after ~5 hits, he will disengage attack on that player and seek another target after a cooldown of ~2 seconds. When a player has been marked for an attack, they will have 3 seconds to run/find light to avoid being attacked. The attack will deal ~100-150 damage to an unarmored player, making usage of light items imperative. Should a player relight a fire pit/place a campfire, a ring of shadow arms will be spawned and will put out the light after a short amount of time.
Randomly through out the fight he might use use this one:
Ghoul summon: In this attack, Jack summons 4-7 "ghouls" which are slow moving mobs with hp that takes 6 hits from a dark sword to kill. They do the same damage as a hound. Animation: Jack thrusts his left hand upwards in at the same time as the summoning of the ghouls.
When jack takes too much damage outside of the pumpkin fling attack, he will randomly teleport a short distance away, and "spook" players that have dealt damage to him and are a range, causing a sanity degen and disarming them.
Phase 2 starts when his health falls below 50%, jack's "jaw" falls off and a black "ectoplasm" starts to drip out.
This phase is less of a drastic change than other boss phases, with the only changes being:
More quick and erratic attacking, occasional drop of small pools of ectoplasm behind him that slows players, random spooking of players throughout, increased ghoul spawn amounts, and teleporting to the marked player when out of range
Loot: Jack's drops are the same as Klaus' drops however:
Most of his drops are in goodie bags instead of presents
Instead of charcoal and life giving amulets, Jack drops pumpkins and life giving amulets instead
Instead of Volt goat milk and ginger bread cookies, He drops Halloween candy and curses.
It also drops one of these two unique items:
Ghastly Scythe: this is a weapon that is basically a dark sword intended for long term use, with the same stats as dark sword, but with less/no insanity aura, and slowly regens durability when not in use (like 5-10% a day) it can be repaired by 10% instantly using the ectoplasm dropped by jack.
Jack's Head: A helmet that has the same durabililty as a thulecite crown, but only 85% damage resistance and lacks the force field, but passively regens sanity (same as garland per regen period) and produces a passive light while equipped. it degens about 15-20% durability per day if used constantly throughout a single day. It can be refueled by 1% using nightmare fuel, 15-33% using the ectoplasm dropped by jack. It has the same light radius as a mining lamp
Bonus:
Mysterious seed: A item that has a 33% chance to drop from jack, it's use being to combine it with 1 pumpkin at a critter den to make a "pumpkinling" which is a small lizard inside a mini-pumpkin that waddles around inside of it, wearing the pumpkin like a "costume"
So what is your guys, the viewers, opinion on this? are some features to weak, or too overpowered? Feel free leave any criticism (please keep it constructive, "this is bad and it sucks" without any reasons isn't helpful.)