promotional bannermobile promotional banner

Ultris: Boss Expansion — Mob Battle Patch

An addon data pack for Ultris: Boss Expansion that enables non-player entity aggro on its bosses among other tweaks tailoring to mob battle functionality.

DISCLAIMERS

  • With this data pack enabled, Ultris will no longer be suitable for survival use as the overriden files for Ultris' functions have been drastically altered and many things that would've worked the way they should in a survival setting may be broken entirely.
  • This is not a standalone data pack, it needs to be installed on top of Ultris: Boss Expansion in either mod or data pack form, whichever you're using.
  • For the Shulker Stone boss, you will need to spawn a mob in a team first in a 64-block radius within the location the Shulker Stone will be summoned.

 

 

If you want to prevent the possibility of Ultris bosses targeting each other in combat, run the command /trigger ultris_nofriendlyfire

You can then re-enable the possibility by running the command again.

Useful for team battles involving a group of Ultris bosses.

 

Bosses too weak in battle? Enable Ultra Mode! (Run the command /function 1_splatus:ultris/other/ultramode_enabled)

 

 

As a sidenote, the Ultra Wither's code will remain (mostly) untouched as it already works in mob battles on its own.

 

It is also highly recommended that you put mobs in a team before you have them fight the bosses from Ultris.

The Ultris: Boss Expansion — Mob Battle Patch Team

GrandArtisan tier frameprofile avatar
  • 117
    Followers
  • 84
    Projects
  • 13.8M
    Downloads

More from theexiiedfeiiow_View all

  • Boss Rifts — Compat+ project image

    Boss Rifts — Compat+

    An addon to the "Boss Rifts" mod that allows bosses from various mods if they aren't registered under the #forge:bosses tag to spawn boss rifts upon death.

    • 15.0K
    • August 23, 2026
  • Boss Warps {Data Pack} project image

    Boss Warps {Data Pack}

    A lengthy escapade and a fierce scrimmage, followed by an effortless return home. Based on the Boss Rifts mod by jodlodi, but for the Fabric/Quilt-savvy users!

    • 294
    • August 23, 2026
  • Boss Warps project image

    Boss Warps

    A lengthy escapade and a fierce scrimmage, followed by an effortless return home. Based on the Boss Rifts mod by jodlodi, but for the Fabric/Quilt-savvy users!

    • 754
    • August 23, 2026
  • Boss Checklist - Saint's Dragons Compatibility project image

    Boss Checklist - Saint's Dragons Compatibility

    Integrates the Draconian Swarm as well as the Ignivorus, Raevyx, Volitans and Atroxiia from Saint's Dragons as entries in the Boss Checklist mod.

    • 122
    • August 22, 2026
  • Boss Rifts — Compat+ project image

    Boss Rifts — Compat+

    An addon to the "Boss Rifts" mod that allows bosses from various mods if they aren't registered under the #forge:bosses tag to spawn boss rifts upon death.

    • 15.0K
    • August 23, 2026
  • Boss Warps {Data Pack} project image

    Boss Warps {Data Pack}

    A lengthy escapade and a fierce scrimmage, followed by an effortless return home. Based on the Boss Rifts mod by jodlodi, but for the Fabric/Quilt-savvy users!

    • 294
    • August 23, 2026
  • Boss Warps project image

    Boss Warps

    A lengthy escapade and a fierce scrimmage, followed by an effortless return home. Based on the Boss Rifts mod by jodlodi, but for the Fabric/Quilt-savvy users!

    • 754
    • August 23, 2026
  • Boss Checklist - Saint's Dragons Compatibility project image

    Boss Checklist - Saint's Dragons Compatibility

    Integrates the Draconian Swarm as well as the Ignivorus, Raevyx, Volitans and Atroxiia from Saint's Dragons as entries in the Boss Checklist mod.

    • 122
    • August 22, 2026