New boss, The Wither King

Name:Wither King
Health:50 hearts
Damage:4.5 hearts with netherite armor,6 hearts with diamond armor,8 hearts with iron armadua,8.5 hearts with gold armor,9 hearts with leather armor,you die without armor
Height:3 blocks high and 1 wide and 1 deep
How to incovate:You need 1 wither skull,8 obsidian blocks(you put the skull in the center and surround it with obsidian),you put the block on the floor and surround it with 8 blocks of soul sand,it is activated with a bone and it takes 15 seconds to appear,it appears with an explosion that does not damage the ground but if it damages any nearby entity
When you invoke it,a bar like the whiter comes out, it has 3 phases.
Phase1:Summons withers and 2 blaze, it also hurts if it touches you
Phase2:Summons more withers than in 1 and more blazes, also summons 2 wiyers
Phase3:Summons more withers than in 2 and more blazes, summons the whiyer again, but it can also attract you to him by causing enemies to hurt you
Lute:you go up to level 30 experience(no matter how many levels you have),if you kill him with a sword without looting: 2% he gives you his hammer,8% he gives you a piece of his armor,20% he gives you 1 ancient debris,30% he gives you 2 whitherite fragment,40% he gives you 10 carbon