Boss List i Think
Slime king:7k hp the weakest boss
3 Headed Snake:10k inflict poison debuff
Ice golem:12k Dashing Attacks and FrostBite
Dust Lord:15k Slows The Player/Ranged
Also Summons DustDevil
Prime Chaos:20k Equip with Steel Set and Uses Shell for defense
Ghoul:25k Summons Ghost/Boss Spawn is in Battle Ground Cemetery
Tentalord:30k Throws Strong Projectile also slows the player
Royal Knigths: 37k Use Iron Sword and Also can use Dash and Disorient
Spawns in Arena Ruins
Lord of Death:43k Can Go troutgh walls and Uses Projectile to attack you
Tomb Watchers:48k Guards The Entrance Of Royal Tomb
Skeletal King:Curent Boss
Those are only Pre-SkeletalKing LOL
I hope These Bosses Implemented