Using the Lunge enchantment at level 255 with Unbreaking on a spear causes the game to calculate the damage to apply to the spear. But because the damage for Lunge 255 is 6.7*10^153 (according to slicedslime via Twitter), the calculation takes a long time thus lagging the game.
In the attached video I used this command to get the spear (it lags the game even with Unbreaking of a lower level)
give @s minecraft:copper_spear[minecraft:enchantments={"lunge":255,"unbreaking":255}]Environment
Windows 11
Singleplayer
Java:
openjdk 21.0.7 2025-04-15 LTS
OpenJDK Runtime Environment Temurin-21.0.7+6 (build 21.0.7+6-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.7+6 (build 21.0.7+6-LTS, mixed mode, sharing)
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