This is a clientside utility mod for Crystal PVP/Combat as well as Anchor PVP, that allows you to use crystals and anchors to their full potential without the hassle of rattling your brain to the core. This is intended for small scale singleplayer worlds and small scale servers. Currently INCOMPATIBLE with one of my other mods, macecore.

Requires Fzzy Config & Mod Menu for configuration
IMPORTANT! The default keybind to enable/disable the entire mod is H. Change it in the keybinds tab!

If installed serverside, This mod acts as its own anti-cheat and searches for its own packet (crystalcore:crystalcore-rep) to remove you from the server. This packet will not be present if you compile the mod from source or get it from my patreon. Patreon
The 1.21.4 & 1.21.1 versions of this mod is exclusive to my Patreon as well.

Here is a rundown of everything included within this mod (Keep in mind that also every feature has tick variance to minimize detection):

features (entirely configurable):
TriTotem/Totem Gaze (One of the first autototems to actually OPEN YOUR INVENTORY, move your cursor towards a totem, then equips it. Speed and other factors can be modified in the config as well.)
Crystal Flick Assist (if you hit a player with a full knockback attack while you have obsidian and end crystals in your hotbar, a nearby available placeable block will be found and your aim will be slightly shifted towards that block to facilitate placement of a quick obsidian + end crystal.)
Anchor Flick Assist (If you charge a respawn anchor past minimum capacity, your viewpoint will be flicked downwards (to facilitate the placement of a block between you and the anchor so you take no damage), and back up again to destroy the anchor. Speed is configurable)
Crystal Breaker (If you're holding the right click button, you'll automatically destroy end crystals as soon as they are within your crosshair as fast as possible, UNLESS you are above the crystal or at feet level to it.)
DragR (When holding right click while holding some specific blocks (such as glowstone or obsidian), it will simulate a packet-accurate drag click (places blocks as fast as possible), pairing great with crystal flick assist and anchor flick assist.)
Intuitive Sound Effects (custom vanilla-based sound effects when any crystal tech is performed, also reworks the explosion sound to be way less harsh (can be turned back to default in config!))
Tick Variance (allows you to configure the tick randomness of most of the features, on by default and is intended to avoid macro detection )

Reccomended settings per server as of 8/24/2025 (❗meaning high risk)
If this list is inaccurate please warn others in the comment section. Please note that spam clicking while using any of these may cause duplicate packets to be created, which can be easily detected, thus I do not reccomend doing so:

MCPVP:
Totem Gaze/TriTotem✔️
Anchor Flick Assist✔️
Crystal Flick Assist✔️
dragR✔️
anti Shielding✔️
D-tap Protection✔️
Crystal Icer✔️

CatPVP:
Totem Gaze/TriTotem✔️
Anchor Flick Assist✔️
Crystal Flick Assist✔️
dragR✔️
anti Shielding✔️
D-tap Protection✔️
Crystal Icer✔️

Anything else (as of current patch) ❗

If you're a modpack creator, feel free to include this in your modpack if you want to encourage lesser-skilled players to use and grind for the mace, as this gives anyone access to the full potential of crystal pvp in vanilla Minecraft.

If you're a modpack creator, feel free to include this in your modpack if you want to encourage lesser-skilled players to use and cart pvp, as this gives anyone access to the full potential of cart pvp in vanilla Minecraft.

have any suggestions? Join the discord!

This mod is a brother mod to macecore.

crystalcore💠

Fzzy Config

Mod Menu