Ally Effect
by Mrbysco
With Ally Effect, a player can bestow a status effect on another player, a pet or a companion, and the default setup gives others Regeneration while the giver loses hunger.
What it does
The mod lets a player apply a status effect to another player, a tamed pet, or a nearby companion. The default effect grants the target Regeneration II and costs the giver Hunger II, so a hug or a heal from a friend is paid for in food. The author describes the feature as a heal that trades saturation for the benefit given to someone else. Players can change how often the effect fires and which key triggers it, and a configuration option controls the animation that plays when an effect is executed.
Under the hood the effect is driven by two mcfunction scripts, one that runs on the player performing the action and one on the entity receiving it. Because the behavior lives in a datapack, server owners can adapt the effects without a Java build. Ally Effect is built for both Forge and NeoForge, and it is released under the MIT License as open source, with the source code and issue tracker publicly linked. The current Forge file is 1.0.1 for 1.20.1, and the latest NeoForge file is 4.0.0 for 26.2, a beta-channel build.
Key features
Effect bestowal
A player can give a status effect to another player, a pet, or a companion entity in range.
Default hunger trade
The standard effect gives Regeneration II to the receiver and Hunger II to the giver, creating a cost for helping.
Configurable trigger
The frequency of the effect and the key that executes it can both be changed in the settings.
Animation option
A configuration entry turns the playback animation on or off when an effect is executed.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Cooperative survival
Groups of players can keep each other healthy in a survival world, with the food cost making the help a deliberate choice.
Pet support
Tamed animals can receive effects from their owner, so a pet can be healed or buffed during a fight or a trip.
Modpack design
Pack authors can use the datapack-driven effects and the config options as a base for their own social mechanics.
Who it’s for: Players who want cooperative or roleplay mechanics in survival, and modpack makers who want a ready-made effect system to adjust. Server owners can set the behavior through the datapack and configuration.
Questions
Which loaders does Ally Effect support?
Does Ally Effect need to be installed on the server?
Can the default effect be changed?
In the catalog
Ally Effect is one of 29,952 Game mechanics mods on ModsFinder, and one of 13,316 Game mechanics mods for Forge. 13,894 mods support Minecraft 26.2.
More from Mrbysco
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What the author says
Ally Effect is a mod that enables players to bestow effects upon each other, themselves and their pets at the push of a button! By default, the effect gives other players Regen 2, and the player Hunger 2. Heal your friends by sacrificing some saturation!\ This can be changed by making a datapack though, since the…
Official listing
- Modrinth page
- modrinth.com/mod/ally-effect
- Owner
- Mrbysco
- Published
- 2025-10-22
- Updated on Modrinth
- 2026-08-08
- Facts verified
- 2026-10-15