
This addon is still in Alpha test, so it is expected to have many bugs and really unbalanced settings. I hope to hear your feedbacks!
This is an addon to add more fixed boss into the game, like Phoenix in original game.
However, because they may not spawn at all, and if they do, it may be likely to trigger a bug to crush you savefile, or turns out to be quite imbalanced to ruin your run. For your sake, it may be better to use debug mode to summon those new boss to test them, at least in the current Alpha status.
Currently this addon will add 8 new/revamped boss into the game, with their unique special abilities and fighting styles.
They are designed to be maybe a bit dangerous, and haven't been balanced around, so they may not be suitable for a lot of players until it received more feedbacks and got some more future patches.
You can check this addon on te4.org.
Why to add more boss?
- While random rare/boss are the most defining aspect of insane+ gameplay, as I am also a fan of nsome on-roguelike RPG, I still found the experience around a fixed boss with predictable battle style more irreplaceable to me, like the experience I got annihilated by the Shade, Master, or many other awesome fixed boss enemies for the same time.
- It's a chance to try introducing more wild, 'dangerous' and completely unfair battle mechanisms into the game, without the need to design balance around a whole class.
- There are so many wonderful class addons in this game, with their awesome fighting styles, however, there are less addon introducing new enemies for us to try our brand new monster-slaughtering kits on.
- I can't draw, nor does making all those fancy OpenGL shaders. So the only thing I can do is to use my paint.NET to palette-swap some old enemies. Hope you would appreciate my tastes :>

Ureslak the Prismatic Wyrm
A remake of the original Ureslak the Prismatic, it is the reason I start to make this addon.
The old design of Ureslak is quite cool and atomospheric, however its implement code make its talent a bit fall behind after so many patches, and it even act worse than ordinary rares in insane+, beacuse of its unique mechanism will clean all its additional talents got from difficulty.
I have changed the code of its passive abilities, and added more talents to it. It will shifting colors quickly, having 2 from fire/cold/lightning/physcial/acid/arcane/darkness/blight types, and can only use talents related to the current 2 colors.
It will shift a new color in every 4 turns, and its resistance will also shift accounding to it. It's defense is weakest at arcane, so focus your firepower at this moment.
Also, it have chromatic fury(I had thought for long whether to added it, and can't really decide it), so you are about to face a really strong breath every 4 turns. Beware!
It would be a hard boss, but its treasure will be enormous. Face the warth of the strongest wyrm!

Burning darkflame portal
Exclusive to Ashes of Urh'Rok DLC
A brand new boss featuring a demonic portal, it have 3 forms.
In the first form, it's nearly harmless and passive.
However, if you kill it, it will turn invulnerable in the next form, and gained the ability to summon an army of demons. It will chase you with its teleporting abilities.
To remove its invulnerable state, you should rush and close 3 beacons spawned across the whole map, while fighting all those demons summoned by it.
For avoiding it blocking the road, when you try to do a melee attack this enemy, you will swap position with it, it will only occur once per turn.
After all 3 beacons are closed, it will turn into the third form, featuring a Doombringer/Demonologist hybrid. Prepare for a good fight!.

Occultic Shards
Exclusive to Embers of Rage DLC
A boss designed around occultic technomancy.
I work around a bit to make Metaphasic Spin usable on NPC enemy, and it is the final product.
It's a rather straight forward boss, but it will answer you with brute firepower, ready to face the arcane barrage!

Rune-infused Ogre
A boss centered on inscription-using.
I want to make a boss firing tons of runes at you, and it is the final product.
It will swap in a new inscription every 2 turns, and it is its main ability, both offensive and defensive.

Rungof the Slaughter
A remake of Rungof.
It's a grapple brawler/berserker hybrid.
I hope this would make it more deadly and unique.

Snow giant boulder slinger
It a David vs Goliath fight, and when Goliath got to be the slinger.
When people think snow giant boulder thrower are deadly, and skirmishers are deadly, I want to make a boss that combines both.
It uses a unique shot which shooting boulders that would knockback you and use strength instead of cunning for damage. Its stamina regeneration heavily relies on Breathing Room, but it would be hard to approach it.

Frostprey
The ice phoenix.
It starts with an egg, and will enter egg states after hitting below 70% / 50% / 30% / 5% health for the first time, summoning a rare shivogoroth at the same time.
In egg state, it would not act, but it would quickly regenerate health in that state, and each egg layer will absorb some damage or at least take a hit.
If it is fully recoverd, it will not consume this egg, and will gain an extra egg count.
Oh, and it will also breath out uttercold wind that turns the ground into slippery ice. You can, and will inevitably skate on it, traveling 2 grids everytime you move.
It's a completely optional boss, but if you tried to fight it, you will face its strong ice-lightning abilities, be ready to be frozen by the incarnation of winter!

Phantoscopic Shards
The mirror image boss.
It will summon 3 images of it.
The fake ones will be a bit diffenerent to their normal counterpart.
If you hit the fake one, it would recover HP, so keep focused and find the real one!
Future Roadmap
Though this bug is in alpha status, so it is still incompletely
If I have more spare time, I will try to make this addon better on those aspects:
- Make those boss more balanced.
- Even more brand new boss.
- A boss-rush mode to test your skills.
- Or even more interesting things, based on your feedbacks!