WannaFun?

A simple mod that allows you to sit by setting the key you want (default “g”), the main function and that of being able to get hearts from other players when they die and be able to steal them assimilating them, but beware! Each time you die, you’ll have a cooldown for the respawn (which can be changed via commands or craftable item) to make the gameplay experience more authentic. 

And if you are capable you can craft hearts too!