NoDamageParticle

"This is an extremely straightforward and uncomplicated feature: by making use of the ProtocolLib library (which is a well-known and powerful tool for intercepting and manipulating network packets in Minecraft), we can effectively cancel, or in other words completely suppress, the appearance of the black heart particle effect that normally shows up right after a player attacks an entity. Additionally, it's worth mentioning that this implementation has been carefully designed to maintain full compatibility across a wide range of Minecraft versions, starting from version 1.19, then covering version 1.20, and extending to any and all later versions beyond 1.20 as well."