
Mob Tag Fixes in FTB StoneBlock 4
FTB StoneBlock 4 1.23.0 ships version 1.0.0 · First seen in 1.16.0
Mob Tag Fixes is a mod in FTB StoneBlock 4 1.23.0, where it is version 1.0.0. Adds modded mobs to the vanilla entity type tags they belong in, so Smite, raids, and Bane of Arthropods work on them. (Summary from the mod's Modrinth page.)
Mob Tag Fixes guide for FTB StoneBlock 4
Last verified for FTB StoneBlock 4 v1.23.0 on Oct 16, 2026 · text last changed Oct 16, 2026
Also applies to:FTB Skies 2 1.19.0 to 1.24.0
- Sections
- 5
1 section is written for this pack; 4 are shared from another pack's guide.
Every recipe and number here was checked against FTB StoneBlock 4 1.23.0, read from the running game on Oct 13, 2026.
What is Mob Tag Fixes?
3 parts
Same as in the FTB Skies 2 1.22.0 guide
Mob Tag Fixes is a small utility mod that makes vanilla combat mechanics work on modded mobs. Vanilla decides a lot of combat behavior with entity type tags, and a modded mob only gets those tags if its own mod added them. Many mods don't, so this one fills in the gaps.[1]
What it fixes
Without it, a modded skeleton takes no extra damage from Smite and is healed by a Potion of Healing. A modded illager is skipped by raids, and Bane of Arthropods does nothing to a modded spider. The mod adds those mobs to the tags they were left out of, so all of that behaves the way you'd expect.[1]
- Undead: summoned skeletons, zombies and draugr from Iron's Spells, Cataclysm Spellbooks, Traveloptics and GameTechBC, plus the undead from Born in Chaos, Alex's Mobs, Alex's Caves and Mutant Monsters.[1]
- Raiders and illagers: the Iron's Spells Archevoker and the It Takes a Pillage bandit faction.[1]
- Arthropods: modded insects and crustaceans from Alex's Mobs, Ars Nouveau, Cataclysm and Iron's Spells.[1]
Who it's for
You don't need to do anything with this mod. It's for anyone fighting modded mobs with vanilla enchantments, potions and raid mechanics, and it works in the background. It's pure data and tags, and nothing is patched or mixin'd. Every entry is soft, so if a supported mod isn't in the pack, that entry is skipped instead of causing an error. The vanilla tags are extended, not overwritten.[1]
The pack includes version 1.0.0, which targets Minecraft 1.21.1 on NeoForge. The mod is server side only.[1][2]
Configuration
If you want to change what it does, the file config/mob_tag_fixes-common.toml has a switch for each supported mod's additions. The clear-cut entries are separate from the borderline ones like spirits, pumpkin knights and headless types, so you can keep some and turn off others. Set a group to false and those mobs stay out of the tags. A datapack can also remove individual entries, since the additions are plain tag files.[1]
Unverified The sources don't show any quests for this mod, or a place for it on the ATM Star path, so it doesn't appear to be a progression step. They also don't show whether the pack changes any of its default config values.
How do you get started with Mob Tag Fixes?
2 parts
Same as in the FTB Skies 2 1.22.0 guide
Good news: there's nothing to craft here. Mob Tag Fixes adds no items you need to make, so there's no first recipe to build. It works in the background from the moment you load in.[1]
It's a small data-and-tags mod. It adds modded mobs to the vanilla entity type tags they should have been in, so vanilla combat mechanics treat them properly. Nothing is patched or mixin'd.[1]
What you'll notice in play
- Undead: Smite and the healing and harming effects use the undead tag. Without the fix, a modded skeleton takes no extra damage from Smite and gets healed by a Potion of Healing.[1]
- Raiders: raids and Bad Omen use the raiders tag, so a modded illager that was left out of it gets skipped by raids. The mod covers the Iron's Spells Archevoker and the It Takes a Pillage bandit faction.[1]
- Arthropods: Bane of Arthropods uses the arthropod tag. The mod covers modded insects and crustaceans from Alex's Mobs, Ars Nouveau, Cataclysm, and Iron's Spells, so the enchantment works on them.[1]
For undead, the mod covers summoned skeletons, zombies, and draugr from Iron's Spells, Cataclysm Spellbooks, Traveloptics, and GameTechBC. It also covers the undead from Born in Chaos, Alex's Mobs, Alex's Caves, and Mutant Monsters.[1]
Every entry is soft. If a mod isn't in the pack, its entries are skipped instead of causing an error, and the vanilla tags are extended rather than overwritten.[1]
Your only real first step: the config
If you want to change anything, the settings live in config/mob_tag_fixes-common.toml. Each mod's additions can be switched off separately. The clear-cut entries and the borderline ones, like spirits, pumpkin knights, and headless types, have separate switches. Set a group to false and those mobs stay out of the tags.[1]
A datapack can also remove individual entries, because the additions are plain tag files.[1]
Unverified This pack's exact config values, and which of the supported mods are installed, couldn't be confirmed from the available sources. Check the config file in your own instance before changing anything.
How does Mob Tag Fixes work?
4 parts
Same as in the FTB Skies 2 1.22.0 guide
This mod has no machines, multiblocks, power, fluids or item handling, so there is nothing to automate or set up. It is a small data-only mod that works quietly in the background, and the only thing you can adjust is a config file. Here is how it works.[1]
What the mod does
Vanilla decides a lot of combat behavior using entity type tags. Smite and the healing and harming effects use the undead tag, raids and Bad Omen use the raiders tag, and Bane of Arthropods uses the arthropod tag. A modded mob only counts if its own mod put it in those tags, and many mods don't. Without a fix, a modded skeleton takes no extra damage from Smite and is healed by a Potion of Healing. A modded illager is skipped by raids, and Bane of Arthropods does nothing to a modded spider.[1]
Mob Tag Fixes adds those mobs to the vanilla tags they were left out of. It extends the vanilla tags and does not overwrite them. Nothing is patched or mixin'd. Every entry is soft, so if a supported mod isn't installed its entries are skipped with no error.[1]
What gets covered
- Undead: summoned skeletons, zombies and draugr from Iron's Spells, Cataclysm Spellbooks, Traveloptics and GameTechBC, plus the undead from Born in Chaos, Alex's Mobs, Alex's Caves and Mutant Monsters.[1]
- Raiders and illagers: the Iron's Spells Archevoker and the It Takes a Pillage bandit faction.[1]
- Arthropods: the modded insects and crustaceans from Alex's Mobs, Ars Nouveau, Cataclysm and Iron's Spells.[1]
The config switches
Everything is controlled from config/mob_tag_fixes-common.toml. Each supported mod has a switch for its clear-cut mobs, and the more debatable ones, such as spirits, pumpkin knights and headless types, get their own separate switch. Set a group to false and those mobs stay out of the vanilla tags. In this pack every switch is set to true.[1][3]
The main switches each cover a whole mod: alexsmobs_normal for Alex's Mobs, ars_nouveau_normal for Ars Nouveau, born_in_chaos_v1_normal for Born in Chaos, cataclysm_normal for Cataclysm, cataclysm_spellbooks_normal for Cataclysm Spellbooks, gametechbcs_spellbooks_normal for GameTechBC Spellbooks, irons_spellbooks_normal for Iron's Spells, and traveloptics_normal for Traveloptics.[3]
The borderline switches are the ones you might want to turn off if you'd rather those mobs keep their vanilla behavior. Here is what each one covers:[3]
- alexscaves_borderline: Alex's Caves licowitches.[3]
- alexsmobs_borderline: Alex's Mobs spectres.[3]
- born_in_chaos_v1_borderline: Born in Chaos spirits, pumpkinheads, headless knights and hounds.[3]
- cataclysm_borderline: the Cataclysm Harbinger.[3]
- irons_spellbooks_borderline: Iron's Spells citadel keepers, cursed armor stands and dead king corpses.[3]
- mutantmonsters_borderline: Mutant Monsters skull spirits.[3]
- takesapillage_borderline: It Takes a Pillage archers, legioners and skirmishers.[3]
Good to know
The mod is server side only and has no hard dependency on any supported mod. It's safe to add to or remove from an existing world. It also works alongside Extra Damage Enchantments if you use that for its extra damage categories.[1]
Which Mob Tag Fixes config options matter?
3 parts
Same as in the FTB Skies 2 1.22.0 guide
Everything you can tune lives in config/mob_tag_fixes-common.toml. Each option is an on/off switch for one group of modded mobs. When a switch is true, those mobs get added to the vanilla entity tags, so things like Smite, raids and Bane of Arthropods treat them properly. Set a switch to false and those mobs stay out of the tags.[1][3]
The options come in two flavors. The "normal" switches cover a whole mod's clear-cut additions. The "borderline" switches cover the debatable mobs, like spirits, pumpkin knights and headless types, so you can keep one set and drop the other.[1][3]
Normal groups
- alexsmobs_normal is true and covers Alex's Mobs.[3]
- ars_nouveau_normal is true and covers Ars Nouveau.[3]
- born_in_chaos_v1_normal is true and covers Born in Chaos.[3]
- cataclysm_normal is true and covers Cataclysm.[3]
- cataclysm_spellbooks_normal is true and covers Cataclysm Spellbooks.[3]
- gametechbcs_spellbooks_normal is true and covers GameTechBC.[3]
- irons_spellbooks_normal is true and covers Iron's Spells.[3]
- traveloptics_normal is true and covers Traveloptics.[3]
Borderline groups
These are the judgment calls. In this pack the options below are set to true, so these mobs are tagged too.[3]
- alexscaves_borderline is true and covers Alex's Caves licowitches.[3]
- alexsmobs_borderline is true and covers spectres.[3]
- born_in_chaos_v1_borderline is true and covers spirits, pumpkinheads, headless knights and hounds.[3]
- cataclysm_borderline is true and covers the Harbinger.[3]
- irons_spellbooks_borderline is true and covers citadel keepers, cursed armor stands and dead king corpses.[3]
- mutantmonsters_borderline is true and covers Mutant Monsters skull spirits.[3]
- takesapillage_borderline is true and covers It Takes a Pillage archers, legioners and skirmishers.[3]
Turning things off
If a group's mobs don't behave the way you want, say you don't want a certain spirit type to count as undead, set just that switch to false. Because the additions are plain tag files, a datapack can also remove single entries if a whole group is too blunt.[1][3]
What changed in Mob Tag Fixes between versions?
2 parts
Mob Tag Fixes has a short history. The only release in the sources is 1.0.0, which was its first release on NeoForge 1.21.1, and that is the version FTB StoneBlock 4 1.21.0 ships.[4][5]
1.0.0: the first release
Some modded mobs are missing from the vanilla entity type tags they should be in. For example, a mod adds its own skeleton but never puts it in minecraft:undead, so Smite does nothing to it and a Potion of Healing heals it instead of hurting it. This release adds those mobs to the tags their own mods left them out of. That makes Smite, the healing and harming flip, raids, Bad Omen and Bane of Arthropods work on modded mobs and summons.[4]
Here is what the first release covers:[4]
- Undead tags for summoned skeletons, zombies and draugr from Iron's Spells, Cataclysm Spellbooks, Traveloptics and GameTechBC.[4]
- Raider and illager tags for the Iron's Spells Archevoker and the It Takes a Pillage bandits.[4]
- Arthropod tags for modded insects and crustaceans from Alex's Mobs, Ars Nouveau, Cataclysm and Iron's Spells.[4]
- Undead and arthropod entries for Born in Chaos, Alex's Caves and Mutant Monsters.[4]
In the pack
Mob Tag Fixes was first included in FTB StoneBlock 4 1.16.0 or earlier, and 1.21.0 still uses version 1.0.0 of the mod.[5]
Unverified There are no pack changelog entries for this mod, so any pack-specific changes to it across releases are unverified.
Sources
- Mob Tag Fixes project page (modrinth) · official mod data
- FTB Skies 2 1.22.0 mod list · pack file
- FTB Skies 2 1.22.0 config: config/mob_tag_fixes-common.toml · pack file
- Mob Tag Fixes 1.0.0 changelog · changelog
- FTB StoneBlock 4 1.21.0 mod list · pack file
Where this guide comes from
Written from what FTB StoneBlock 4 itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.
Guide last verified Oct 16, 2026.
Report wrong info
Version in each release
12 releases, first in 1.16.0
| FTB StoneBlock 4 | Version | Jar | Where it came from |
|---|---|---|---|
| 1.23.0 Oct 12, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.22.0 Sep 22, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.21.0 Sep 9, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.20.1 Sep 1, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.20.0 Aug 26, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.19.1 Aug 12, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.19.0 Aug 11, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.18.0 Aug 9, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.17.2 Jul 29, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.17.1 Jul 28, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.17.0 Jul 24, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
| 1.16.0 Jul 2, 2026 | 1.0.0 | mob_tag_fixes-1.0.0.jar | From the published release |
"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.
Items and blocks
We can't match this mod to the pack's item list: it registers as mob_tag_fixes, and the pack's recipe dump has nothing under that name. That means we found nothing, not that the mod adds nothing. Search the item browser
Config options (how FTB StoneBlock 4 sets them)
15 settings this pack ships for the mod. We don't have the mod's own defaults to compare them against yet.
Show settings
| Setting | FTB StoneBlock 4 value |
|---|---|
alexscaves_borderline alexscaves licowitches config/mob_tag_fixes-common.toml | true |
alexsmobs_borderline spectres config/mob_tag_fixes-common.toml | true |
alexsmobs_normal alexsmobs config/mob_tag_fixes-common.toml | true |
ars_nouveau_normal ars_nouveau config/mob_tag_fixes-common.toml | true |
born_in_chaos_v1_borderline spirits, pumpkinheads, headless knights, and hounds config/mob_tag_fixes-common.toml | true |
born_in_chaos_v1_normal born_in_chaos_v1 config/mob_tag_fixes-common.toml | true |
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