Abilities in comments (if you ask politely)

How powerful is that thing

Very powerful

Shadronia has 3 boss phases

While the Demonic Shingod only has one phase, it has a lot of attacks it can use that can one-shot bosses with under 200 defense

Shadronia has echo attacks (instant followup attacks)

The Shingod is about 12 meters tall and has a disorienting roar, this boss also takes down a similarly harder boss known as the Murdertrodon

Shadronia is about human size in first form tall as a power line post in second and third is a secret ;) but he has inversion shadow fire magic and a crossbow that shoots flame shots

I’ll put abilities when I get time

Abilities and stats:
Hp: phase 1 25000 phase 2 77000
Defense 300
Attacks and abilities
Phase 1 slashes with scythe having an instant followup most of the time, magic shoots flames or various other shaped magic around the battlefield
Crossbow shoots a beam that explodes on impact into the same flames from the previous attack
Transition attack tries to take your characters soul if failed to fight back it’s a instakill
Phase 2
Ability has 20 small arms on each side (art for phase 2/2nd form soon) that can be merged into big arms, big wings or smaller versions of both
Most of the same as phase 1 but with increased damage and size (scythe leaves a fire trail and explosions leave spikes)
New attacks:
Homing spikes no explanation needed
Mega shade beams two at once (replaces crossbow)
Pillars makes a spiked flaming pillar appear out of the ground
Finally shade meteor rains down shadow flame meteors that leaves fire behind

Took me a while to make all this hope you enjoy;)

Is the thing on the left arm a shield of some kind or is it part of the arm

That’s a inverted flame

What the heck is an inverted flame

Magic