Buff Banners
by Orangeness
Buff Banners makes hostile mobs spawn with banners that grant combat bonuses, and the bonuses are shown on each mob.
What it does
Hostile mobs spawn with Buff Banners that grant combat buffs, changing how dangerous a fight becomes. The buffs apply to the vanilla hostile mobs covered by the mod, with the Ender Dragon and the Elder Guardian listed among the exceptions. Each buff is a fixed bonus, not a random roll, so a player can learn what a banner gives before a fight.
The mod is built for Fabric and needs Fabric API installed beside it. Buff Banners runs on client and server, so the server and every player need it. Files cover 1.21 – 1.21.3, and the latest Fabric file is 1.0 for 1.21.3, published on 2026-03-01. The code is not open source and the mod is released under All rights reserved.
Key features
Banner-carrying hostile mobs
Hostile mobs spawn with a banner that gives them a combat buff while they are alive.
Damage bonus against a mob type
Each buff raises attack damage by 35% against one mob type, so a player can pick a matching strategy.
Reduced incoming damage
A buff can lower the damage a player takes from one mob type by 35%.
Vanilla hostile mob coverage
Most vanilla hostile mobs are supported, while the Ender Dragon and the Elder Guardian are left out.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Harder survival fights
Players who want hostile mobs to pose a bigger threat can rely on the banners to make routine encounters more demanding.
Who it’s for: Survival players who want hostile mobs to carry visible advantages, and server owners who want tougher combat without new mobs to install.
How it compares
Banner Hat is server-side only, released under CC0 1.0 Universal and published for 1.21.1 on Fabric. Passive Armor is client and server, released under All rights reserved and published for 1.21.1 – 1.21.8 on Fabric. Loombook is client-side only, open source under the MIT License and covers 1.21.6 – 1.21.8 on Fabric.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Buff Banners | Fabric | 1.21 – 1.21.3 | Client and server | 2026-03-01 |
| Banner Hat | Fabric | 1.21.1 | Server-side only | 2025-09-14 |
| Passive Armor | Fabric | 1.21.1 – 1.21.8 | Client and server | 2025-10-21 |
| Loombook | Fabric | 1.21.6 – 1.21.8 | Client-side only | 2025-12-26 |
Questions
Does Buff Banners need Fabric API?
Does the server need Buff Banners as well as the players?
Which mobs are covered by the banners?
In the catalog
Buff Banners is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 13,252 mods support Minecraft 1.21.3.
More from Orangeness
Similar mods
What the author says
How it works: Only same-type banners within 5 blocks of the main banner count as supports. Each support banner increases the main banner's effective radius.
Official listing
- Modrinth page
- modrinth.com/mod/buff-banners
- Owner
- Orangeness
- Published
- 2026-02-27
- Updated on Modrinth
- 2026-03-01
- Facts verified
- 2026-10-15